diff --git a/etc/spack/defaults/packages.yaml b/etc/spack/defaults/packages.yaml
index 2cfdd399df..92a5eef139 100644
--- a/etc/spack/defaults/packages.yaml
+++ b/etc/spack/defaults/packages.yaml
@@ -31,6 +31,7 @@ packages:
       opencl: [pocl]
       openfoam: [openfoam-com, openfoam-org, foam-extend]
       pil: [py-pillow]
+      pkgconfig: [pkgconf, pkg-config]
       scalapack: [netlib-scalapack]
       szip: [libszip, libaec]
       tbb: [intel-tbb]
diff --git a/lib/spack/spack/build_systems/autotools.py b/lib/spack/spack/build_systems/autotools.py
index 8f2af3e21e..f39eed6997 100644
--- a/lib/spack/spack/build_systems/autotools.py
+++ b/lib/spack/spack/build_systems/autotools.py
@@ -221,10 +221,10 @@ def autoreconf(self, spec, prefix):
             # This line is what is needed most of the time
             # --install, --verbose, --force
             autoreconf_args = ['-ivf']
-            if 'pkg-config' in spec:
+            if 'pkgconfig' in spec:
                 autoreconf_args += [
                     '-I',
-                    join_path(spec['pkg-config'].prefix, 'share', 'aclocal'),
+                    join_path(spec['pkgconfig'].prefix, 'share', 'aclocal'),
                 ]
             autoreconf_args += self.autoreconf_extra_args
             m.autoreconf(*autoreconf_args)
diff --git a/var/spack/repos/builtin/packages/applewmproto/package.py b/var/spack/repos/builtin/packages/applewmproto/package.py
index 170df5d570..d610805884 100644
--- a/var/spack/repos/builtin/packages/applewmproto/package.py
+++ b/var/spack/repos/builtin/packages/applewmproto/package.py
@@ -37,5 +37,5 @@ class Applewmproto(AutotoolsPackage):
 
     version('1.4.2', 'ecc8a4424a893ce120f5652dba62e9e6')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/appres/package.py b/var/spack/repos/builtin/packages/appres/package.py
index 87f5c2ff96..9a6b7bb795 100644
--- a/var/spack/repos/builtin/packages/appres/package.py
+++ b/var/spack/repos/builtin/packages/appres/package.py
@@ -40,5 +40,5 @@ class Appres(AutotoolsPackage):
     depends_on('libxt')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/atk/package.py b/var/spack/repos/builtin/packages/atk/package.py
index 93ce88bb8a..3b37d740a8 100644
--- a/var/spack/repos/builtin/packages/atk/package.py
+++ b/var/spack/repos/builtin/packages/atk/package.py
@@ -37,7 +37,7 @@ class Atk(AutotoolsPackage):
     version('2.14.0', 'ecb7ca8469a5650581b1227d78051b8b')
 
     depends_on('glib')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('gobject-introspection')
 
     def url_for_version(self, version):
diff --git a/var/spack/repos/builtin/packages/autogen/package.py b/var/spack/repos/builtin/packages/autogen/package.py
index 4198ab1589..8851dc9dec 100644
--- a/var/spack/repos/builtin/packages/autogen/package.py
+++ b/var/spack/repos/builtin/packages/autogen/package.py
@@ -40,7 +40,7 @@ class Autogen(AutotoolsPackage):
 
     variant('xml', default=True, description='Enable XML support')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('guile@1.8:2.0')
     depends_on('libxml2', when='+xml')
diff --git a/var/spack/repos/builtin/packages/bdftopcf/package.py b/var/spack/repos/builtin/packages/bdftopcf/package.py
index a85bcf5307..e02e64f71c 100644
--- a/var/spack/repos/builtin/packages/bdftopcf/package.py
+++ b/var/spack/repos/builtin/packages/bdftopcf/package.py
@@ -40,7 +40,7 @@ class Bdftopcf(AutotoolsPackage):
 
     depends_on('libxfont')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('xproto', type='build')
     depends_on('fontsproto', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/beforelight/package.py b/var/spack/repos/builtin/packages/beforelight/package.py
index 457c547a16..2da9d6429a 100644
--- a/var/spack/repos/builtin/packages/beforelight/package.py
+++ b/var/spack/repos/builtin/packages/beforelight/package.py
@@ -40,5 +40,5 @@ class Beforelight(AutotoolsPackage):
     depends_on('libxscrnsaver')
     depends_on('libxt')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/bigreqsproto/package.py b/var/spack/repos/builtin/packages/bigreqsproto/package.py
index e271e12777..502dabfd32 100644
--- a/var/spack/repos/builtin/packages/bigreqsproto/package.py
+++ b/var/spack/repos/builtin/packages/bigreqsproto/package.py
@@ -36,5 +36,5 @@ class Bigreqsproto(AutotoolsPackage):
 
     version('1.1.2', '9b83369ac7a5eb2bf54c8f34db043a0e')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/bitmap/package.py b/var/spack/repos/builtin/packages/bitmap/package.py
index 2ea4613a53..caa64480f4 100644
--- a/var/spack/repos/builtin/packages/bitmap/package.py
+++ b/var/spack/repos/builtin/packages/bitmap/package.py
@@ -41,5 +41,5 @@ class Bitmap(AutotoolsPackage):
 
     depends_on('xbitmaps', type='build')
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/cairo/package.py b/var/spack/repos/builtin/packages/cairo/package.py
index ec04e5ed38..98ae87acdb 100644
--- a/var/spack/repos/builtin/packages/cairo/package.py
+++ b/var/spack/repos/builtin/packages/cairo/package.py
@@ -45,7 +45,7 @@ class Cairo(AutotoolsPackage):
     depends_on("glib")
     depends_on("pixman")
     depends_on("freetype")
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
     depends_on("fontconfig@2.10.91:")  # Require newer version of fontconfig.
 
     def configure_args(self):
diff --git a/var/spack/repos/builtin/packages/compositeproto/package.py b/var/spack/repos/builtin/packages/compositeproto/package.py
index b4a041e7a2..120c76b408 100644
--- a/var/spack/repos/builtin/packages/compositeproto/package.py
+++ b/var/spack/repos/builtin/packages/compositeproto/package.py
@@ -36,5 +36,5 @@ class Compositeproto(AutotoolsPackage):
 
     version('0.4.2', '2dea7c339432b3363faf2d29c208e7b5')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/constype/package.py b/var/spack/repos/builtin/packages/constype/package.py
index 731217b527..1fa0800b48 100644
--- a/var/spack/repos/builtin/packages/constype/package.py
+++ b/var/spack/repos/builtin/packages/constype/package.py
@@ -37,5 +37,5 @@ class Constype(AutotoolsPackage):
 
     version('1.0.4', '2333b9ac9fd32e58b05afa651c4590a3')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/cscope/package.py b/var/spack/repos/builtin/packages/cscope/package.py
index d7e7d29935..31a826be5c 100644
--- a/var/spack/repos/builtin/packages/cscope/package.py
+++ b/var/spack/repos/builtin/packages/cscope/package.py
@@ -37,6 +37,6 @@ class Cscope(AutotoolsPackage):
 
     depends_on('flex', type='build')
     depends_on('bison', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     build_targets = ['CURSES_LIBS=-lncursesw']
diff --git a/var/spack/repos/builtin/packages/czmq/package.py b/var/spack/repos/builtin/packages/czmq/package.py
index 799b577398..bd97d331d0 100644
--- a/var/spack/repos/builtin/packages/czmq/package.py
+++ b/var/spack/repos/builtin/packages/czmq/package.py
@@ -36,7 +36,7 @@ class Czmq(AutotoolsPackage):
     depends_on('libtool', type='build')
     depends_on('automake', type='build')
     depends_on('autoconf', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('zeromq')
 
     def configure_args(self):
diff --git a/var/spack/repos/builtin/packages/damageproto/package.py b/var/spack/repos/builtin/packages/damageproto/package.py
index 06d8815bb4..4b40a5f72b 100644
--- a/var/spack/repos/builtin/packages/damageproto/package.py
+++ b/var/spack/repos/builtin/packages/damageproto/package.py
@@ -36,5 +36,5 @@ class Damageproto(AutotoolsPackage):
 
     version('1.2.1', 'bf8c47b7f48625230cff155180f8ddce')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/dmxproto/package.py b/var/spack/repos/builtin/packages/dmxproto/package.py
index b668dc9b58..c3bd1919fc 100644
--- a/var/spack/repos/builtin/packages/dmxproto/package.py
+++ b/var/spack/repos/builtin/packages/dmxproto/package.py
@@ -37,5 +37,5 @@ class Dmxproto(AutotoolsPackage):
 
     version('2.3.1', '7c52af95aac192e8de31bd9a588ce121')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/dri2proto/package.py b/var/spack/repos/builtin/packages/dri2proto/package.py
index 00c4cc812d..bfd4326d42 100644
--- a/var/spack/repos/builtin/packages/dri2proto/package.py
+++ b/var/spack/repos/builtin/packages/dri2proto/package.py
@@ -37,5 +37,5 @@ class Dri2proto(AutotoolsPackage):
 
     version('2.8', '19ea18f63d8ae8053c9fa84b60365b77')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/dri3proto/package.py b/var/spack/repos/builtin/packages/dri3proto/package.py
index 5f4604789d..257acf8514 100644
--- a/var/spack/repos/builtin/packages/dri3proto/package.py
+++ b/var/spack/repos/builtin/packages/dri3proto/package.py
@@ -37,5 +37,5 @@ class Dri3proto(AutotoolsPackage):
 
     version('1.0', '25e84a49a076862277ee12aebd49ff5f')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/editres/package.py b/var/spack/repos/builtin/packages/editres/package.py
index 1bba68d305..ccd38d114f 100644
--- a/var/spack/repos/builtin/packages/editres/package.py
+++ b/var/spack/repos/builtin/packages/editres/package.py
@@ -38,5 +38,5 @@ class Editres(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libxmu')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/emacs/package.py b/var/spack/repos/builtin/packages/emacs/package.py
index 4b0d7a9689..1a7c8143a9 100644
--- a/var/spack/repos/builtin/packages/emacs/package.py
+++ b/var/spack/repos/builtin/packages/emacs/package.py
@@ -44,7 +44,7 @@ class Emacs(AutotoolsPackage):
         description="Select an X toolkit (gtk, athena)"
     )
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('ncurses')
     depends_on('zlib')
diff --git a/var/spack/repos/builtin/packages/encodings/package.py b/var/spack/repos/builtin/packages/encodings/package.py
index f356b052fc..ae1f5f0c04 100644
--- a/var/spack/repos/builtin/packages/encodings/package.py
+++ b/var/spack/repos/builtin/packages/encodings/package.py
@@ -36,7 +36,7 @@ class Encodings(Package):
     depends_on('font-util')
 
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/evieext/package.py b/var/spack/repos/builtin/packages/evieext/package.py
index a88764516e..0307f86b3b 100644
--- a/var/spack/repos/builtin/packages/evieext/package.py
+++ b/var/spack/repos/builtin/packages/evieext/package.py
@@ -36,5 +36,5 @@ class Evieext(AutotoolsPackage):
 
     version('1.1.1', '018a7d24d0c7926d594246320bcb6a86')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/exonerate/package.py b/var/spack/repos/builtin/packages/exonerate/package.py
index 2dae693b72..86e3d2af7b 100644
--- a/var/spack/repos/builtin/packages/exonerate/package.py
+++ b/var/spack/repos/builtin/packages/exonerate/package.py
@@ -33,7 +33,7 @@ class Exonerate(Package):
 
     version('2.4.0', '126fbade003b80b663a1d530c56f1904')
 
-    depends_on('pkg-config', type="build")
+    depends_on('pkgconfig', type="build")
     depends_on('glib')
 
     parallel = False
diff --git a/var/spack/repos/builtin/packages/fixesproto/package.py b/var/spack/repos/builtin/packages/fixesproto/package.py
index b98437b9ff..93de50db17 100644
--- a/var/spack/repos/builtin/packages/fixesproto/package.py
+++ b/var/spack/repos/builtin/packages/fixesproto/package.py
@@ -37,5 +37,5 @@ class Fixesproto(AutotoolsPackage):
 
     version('5.0', '1b3115574cadd4cbea1f197faa7c1de4')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/folly/package.py b/var/spack/repos/builtin/packages/folly/package.py
index 9dca4bd6cf..1c19de1ea6 100644
--- a/var/spack/repos/builtin/packages/folly/package.py
+++ b/var/spack/repos/builtin/packages/folly/package.py
@@ -50,7 +50,7 @@ class Folly(AutotoolsPackage):
     depends_on('autoconf', type='build')
     depends_on('automake', type='build')
     depends_on('libtool', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     # TODO: folly requires gcc 4.9+ and a version of boost compiled with
     # TODO: C++14 support (but there's no neat way to check that these
diff --git a/var/spack/repos/builtin/packages/font-adobe-100dpi/package.py b/var/spack/repos/builtin/packages/font-adobe-100dpi/package.py
index 8efdebb802..a156aa21c4 100644
--- a/var/spack/repos/builtin/packages/font-adobe-100dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-adobe-100dpi/package.py
@@ -38,7 +38,7 @@ class FontAdobe100dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-adobe-75dpi/package.py b/var/spack/repos/builtin/packages/font-adobe-75dpi/package.py
index 0b73bd1b9a..6443dddc7c 100644
--- a/var/spack/repos/builtin/packages/font-adobe-75dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-adobe-75dpi/package.py
@@ -38,7 +38,7 @@ class FontAdobe75dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-adobe-utopia-100dpi/package.py b/var/spack/repos/builtin/packages/font-adobe-utopia-100dpi/package.py
index 7a61e04de5..a8c945882b 100644
--- a/var/spack/repos/builtin/packages/font-adobe-utopia-100dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-adobe-utopia-100dpi/package.py
@@ -38,7 +38,7 @@ class FontAdobeUtopia100dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-adobe-utopia-75dpi/package.py b/var/spack/repos/builtin/packages/font-adobe-utopia-75dpi/package.py
index dddd546cad..60390be8a7 100644
--- a/var/spack/repos/builtin/packages/font-adobe-utopia-75dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-adobe-utopia-75dpi/package.py
@@ -38,7 +38,7 @@ class FontAdobeUtopia75dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-adobe-utopia-type1/package.py b/var/spack/repos/builtin/packages/font-adobe-utopia-type1/package.py
index 0d03c12822..c7df91f595 100644
--- a/var/spack/repos/builtin/packages/font-adobe-utopia-type1/package.py
+++ b/var/spack/repos/builtin/packages/font-adobe-utopia-type1/package.py
@@ -37,7 +37,7 @@ class FontAdobeUtopiaType1(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-alias/package.py b/var/spack/repos/builtin/packages/font-alias/package.py
index 15a14bf2cb..04d14bf53c 100644
--- a/var/spack/repos/builtin/packages/font-alias/package.py
+++ b/var/spack/repos/builtin/packages/font-alias/package.py
@@ -35,7 +35,7 @@ class FontAlias(Package):
 
     depends_on('font-util')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-arabic-misc/package.py b/var/spack/repos/builtin/packages/font-arabic-misc/package.py
index 20ca7a2df0..d62f1f904f 100644
--- a/var/spack/repos/builtin/packages/font-arabic-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-arabic-misc/package.py
@@ -38,7 +38,7 @@ class FontArabicMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-100dpi/package.py b/var/spack/repos/builtin/packages/font-bh-100dpi/package.py
index 3472783671..0a1101a2d3 100644
--- a/var/spack/repos/builtin/packages/font-bh-100dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-100dpi/package.py
@@ -38,7 +38,7 @@ class FontBh100dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-75dpi/package.py b/var/spack/repos/builtin/packages/font-bh-75dpi/package.py
index bb5268208c..00d09bc67f 100644
--- a/var/spack/repos/builtin/packages/font-bh-75dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-75dpi/package.py
@@ -38,7 +38,7 @@ class FontBh75dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-100dpi/package.py b/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-100dpi/package.py
index 6fe18e703b..6fa2c93439 100644
--- a/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-100dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-100dpi/package.py
@@ -38,7 +38,7 @@ class FontBhLucidatypewriter100dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-75dpi/package.py b/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-75dpi/package.py
index f44596b882..5417f18e55 100644
--- a/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-75dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-lucidatypewriter-75dpi/package.py
@@ -38,7 +38,7 @@ class FontBhLucidatypewriter75dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-ttf/package.py b/var/spack/repos/builtin/packages/font-bh-ttf/package.py
index 83ad928c8b..c16ffce576 100644
--- a/var/spack/repos/builtin/packages/font-bh-ttf/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-ttf/package.py
@@ -38,7 +38,7 @@ class FontBhTtf(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bh-type1/package.py b/var/spack/repos/builtin/packages/font-bh-type1/package.py
index 594efb0460..65d091cedb 100644
--- a/var/spack/repos/builtin/packages/font-bh-type1/package.py
+++ b/var/spack/repos/builtin/packages/font-bh-type1/package.py
@@ -38,7 +38,7 @@ class FontBhType1(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bitstream-100dpi/package.py b/var/spack/repos/builtin/packages/font-bitstream-100dpi/package.py
index a5722733da..92f095f9bf 100644
--- a/var/spack/repos/builtin/packages/font-bitstream-100dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bitstream-100dpi/package.py
@@ -38,7 +38,7 @@ class FontBitstream100dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bitstream-75dpi/package.py b/var/spack/repos/builtin/packages/font-bitstream-75dpi/package.py
index 8dcf9dfe2c..b8a42e82df 100644
--- a/var/spack/repos/builtin/packages/font-bitstream-75dpi/package.py
+++ b/var/spack/repos/builtin/packages/font-bitstream-75dpi/package.py
@@ -38,7 +38,7 @@ class FontBitstream75dpi(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bitstream-speedo/package.py b/var/spack/repos/builtin/packages/font-bitstream-speedo/package.py
index e2ae5fea3c..5cc6b37f06 100644
--- a/var/spack/repos/builtin/packages/font-bitstream-speedo/package.py
+++ b/var/spack/repos/builtin/packages/font-bitstream-speedo/package.py
@@ -38,7 +38,7 @@ class FontBitstreamSpeedo(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-bitstream-type1/package.py b/var/spack/repos/builtin/packages/font-bitstream-type1/package.py
index c6699b7521..c37a11ba86 100644
--- a/var/spack/repos/builtin/packages/font-bitstream-type1/package.py
+++ b/var/spack/repos/builtin/packages/font-bitstream-type1/package.py
@@ -38,7 +38,7 @@ class FontBitstreamType1(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-cronyx-cyrillic/package.py b/var/spack/repos/builtin/packages/font-cronyx-cyrillic/package.py
index 829f28ee1e..f0e2e90c1b 100644
--- a/var/spack/repos/builtin/packages/font-cronyx-cyrillic/package.py
+++ b/var/spack/repos/builtin/packages/font-cronyx-cyrillic/package.py
@@ -38,7 +38,7 @@ class FontCronyxCyrillic(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-cursor-misc/package.py b/var/spack/repos/builtin/packages/font-cursor-misc/package.py
index 34479c7fc6..6d4c6f7a31 100644
--- a/var/spack/repos/builtin/packages/font-cursor-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-cursor-misc/package.py
@@ -38,7 +38,7 @@ class FontCursorMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-daewoo-misc/package.py b/var/spack/repos/builtin/packages/font-daewoo-misc/package.py
index 9c346c3b8b..c12ee9363b 100644
--- a/var/spack/repos/builtin/packages/font-daewoo-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-daewoo-misc/package.py
@@ -38,7 +38,7 @@ class FontDaewooMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-dec-misc/package.py b/var/spack/repos/builtin/packages/font-dec-misc/package.py
index 22c52a95da..a88e2ffc7e 100644
--- a/var/spack/repos/builtin/packages/font-dec-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-dec-misc/package.py
@@ -38,7 +38,7 @@ class FontDecMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-ibm-type1/package.py b/var/spack/repos/builtin/packages/font-ibm-type1/package.py
index a8d06ef092..6261a19093 100644
--- a/var/spack/repos/builtin/packages/font-ibm-type1/package.py
+++ b/var/spack/repos/builtin/packages/font-ibm-type1/package.py
@@ -38,7 +38,7 @@ class FontIbmType1(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-isas-misc/package.py b/var/spack/repos/builtin/packages/font-isas-misc/package.py
index 86353f22ce..f704c7cafa 100644
--- a/var/spack/repos/builtin/packages/font-isas-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-isas-misc/package.py
@@ -38,7 +38,7 @@ class FontIsasMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-jis-misc/package.py b/var/spack/repos/builtin/packages/font-jis-misc/package.py
index 18723cc129..1ee1616818 100644
--- a/var/spack/repos/builtin/packages/font-jis-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-jis-misc/package.py
@@ -38,7 +38,7 @@ class FontJisMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-micro-misc/package.py b/var/spack/repos/builtin/packages/font-micro-misc/package.py
index 664cc158a7..fa9951d8d0 100644
--- a/var/spack/repos/builtin/packages/font-micro-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-micro-misc/package.py
@@ -38,7 +38,7 @@ class FontMicroMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-misc-cyrillic/package.py b/var/spack/repos/builtin/packages/font-misc-cyrillic/package.py
index 52d2e0ca33..dc0bb59fbb 100644
--- a/var/spack/repos/builtin/packages/font-misc-cyrillic/package.py
+++ b/var/spack/repos/builtin/packages/font-misc-cyrillic/package.py
@@ -38,7 +38,7 @@ class FontMiscCyrillic(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-misc-ethiopic/package.py b/var/spack/repos/builtin/packages/font-misc-ethiopic/package.py
index ed10f2ecad..060e78dea1 100644
--- a/var/spack/repos/builtin/packages/font-misc-ethiopic/package.py
+++ b/var/spack/repos/builtin/packages/font-misc-ethiopic/package.py
@@ -38,7 +38,7 @@ class FontMiscEthiopic(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-misc-meltho/package.py b/var/spack/repos/builtin/packages/font-misc-meltho/package.py
index beef19e00a..f5d1f47b78 100644
--- a/var/spack/repos/builtin/packages/font-misc-meltho/package.py
+++ b/var/spack/repos/builtin/packages/font-misc-meltho/package.py
@@ -38,7 +38,7 @@ class FontMiscMeltho(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-misc-misc/package.py b/var/spack/repos/builtin/packages/font-misc-misc/package.py
index b818cd6a84..2850cdcc90 100644
--- a/var/spack/repos/builtin/packages/font-misc-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-misc-misc/package.py
@@ -38,7 +38,7 @@ class FontMiscMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-mutt-misc/package.py b/var/spack/repos/builtin/packages/font-mutt-misc/package.py
index 0f303923b0..3d55447064 100644
--- a/var/spack/repos/builtin/packages/font-mutt-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-mutt-misc/package.py
@@ -38,7 +38,7 @@ class FontMuttMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-schumacher-misc/package.py b/var/spack/repos/builtin/packages/font-schumacher-misc/package.py
index 66e8002877..d9cb52d0a2 100644
--- a/var/spack/repos/builtin/packages/font-schumacher-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-schumacher-misc/package.py
@@ -38,7 +38,7 @@ class FontSchumacherMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-screen-cyrillic/package.py b/var/spack/repos/builtin/packages/font-screen-cyrillic/package.py
index 71c2230d1f..3efa22c1cf 100644
--- a/var/spack/repos/builtin/packages/font-screen-cyrillic/package.py
+++ b/var/spack/repos/builtin/packages/font-screen-cyrillic/package.py
@@ -38,7 +38,7 @@ class FontScreenCyrillic(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-sony-misc/package.py b/var/spack/repos/builtin/packages/font-sony-misc/package.py
index ccea5883ac..0b7af22dd6 100644
--- a/var/spack/repos/builtin/packages/font-sony-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-sony-misc/package.py
@@ -38,7 +38,7 @@ class FontSonyMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-sun-misc/package.py b/var/spack/repos/builtin/packages/font-sun-misc/package.py
index 26e0c935ed..8febf7d802 100644
--- a/var/spack/repos/builtin/packages/font-sun-misc/package.py
+++ b/var/spack/repos/builtin/packages/font-sun-misc/package.py
@@ -37,7 +37,7 @@ class FontSunMisc(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-util/package.py b/var/spack/repos/builtin/packages/font-util/package.py
index 4f55412457..38a7dd27eb 100644
--- a/var/spack/repos/builtin/packages/font-util/package.py
+++ b/var/spack/repos/builtin/packages/font-util/package.py
@@ -33,5 +33,5 @@ class FontUtil(AutotoolsPackage):
 
     version('1.3.1', 'd153a9af216e4498fa171faea2c82514')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/font-winitzki-cyrillic/package.py b/var/spack/repos/builtin/packages/font-winitzki-cyrillic/package.py
index dade47b7d2..2c4de3dde3 100644
--- a/var/spack/repos/builtin/packages/font-winitzki-cyrillic/package.py
+++ b/var/spack/repos/builtin/packages/font-winitzki-cyrillic/package.py
@@ -38,7 +38,7 @@ class FontWinitzkiCyrillic(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('bdftopcf', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/font-xfree86-type1/package.py b/var/spack/repos/builtin/packages/font-xfree86-type1/package.py
index 2a4dfea233..f84feedec8 100644
--- a/var/spack/repos/builtin/packages/font-xfree86-type1/package.py
+++ b/var/spack/repos/builtin/packages/font-xfree86-type1/package.py
@@ -38,7 +38,7 @@ class FontXfree86Type1(Package):
     depends_on('fontconfig', type='build')
     depends_on('mkfontdir', type='build')
     depends_on('mkfontscale', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/fontconfig/package.py b/var/spack/repos/builtin/packages/fontconfig/package.py
index 8cfd5c0d54..f9ed9c583d 100644
--- a/var/spack/repos/builtin/packages/fontconfig/package.py
+++ b/var/spack/repos/builtin/packages/fontconfig/package.py
@@ -37,7 +37,7 @@ class Fontconfig(AutotoolsPackage):
     depends_on('freetype')
     depends_on('gperf', type='build', when='@2.12.2:')
     depends_on('libxml2')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('font-util')
 
     def configure_args(self):
diff --git a/var/spack/repos/builtin/packages/fontsproto/package.py b/var/spack/repos/builtin/packages/fontsproto/package.py
index c243f9de97..527b3fe405 100644
--- a/var/spack/repos/builtin/packages/fontsproto/package.py
+++ b/var/spack/repos/builtin/packages/fontsproto/package.py
@@ -33,5 +33,5 @@ class Fontsproto(AutotoolsPackage):
 
     version('2.1.3', '0415f0360e33f3202af67c6c46782251')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/fonttosfnt/package.py b/var/spack/repos/builtin/packages/fonttosfnt/package.py
index 145e619c54..30da56fd33 100644
--- a/var/spack/repos/builtin/packages/fonttosfnt/package.py
+++ b/var/spack/repos/builtin/packages/fonttosfnt/package.py
@@ -37,5 +37,5 @@ class Fonttosfnt(AutotoolsPackage):
     depends_on('libfontenc')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/freetype/package.py b/var/spack/repos/builtin/packages/freetype/package.py
index 1ad65a9750..25bb29b454 100644
--- a/var/spack/repos/builtin/packages/freetype/package.py
+++ b/var/spack/repos/builtin/packages/freetype/package.py
@@ -40,7 +40,7 @@ class Freetype(AutotoolsPackage):
 
     depends_on('libpng')
     depends_on('bzip2')
-    depends_on('pkg-config@0.24:', type='build')
+    depends_on('pkgconfig', type='build')
 
     def configure_args(self):
         return ['--with-harfbuzz=no']
diff --git a/var/spack/repos/builtin/packages/fslsfonts/package.py b/var/spack/repos/builtin/packages/fslsfonts/package.py
index ce5b04f0ee..14331a79fa 100644
--- a/var/spack/repos/builtin/packages/fslsfonts/package.py
+++ b/var/spack/repos/builtin/packages/fslsfonts/package.py
@@ -36,5 +36,5 @@ class Fslsfonts(AutotoolsPackage):
     depends_on('libfs')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/fstobdf/package.py b/var/spack/repos/builtin/packages/fstobdf/package.py
index dd51473d41..627826f8d7 100644
--- a/var/spack/repos/builtin/packages/fstobdf/package.py
+++ b/var/spack/repos/builtin/packages/fstobdf/package.py
@@ -40,5 +40,5 @@ class Fstobdf(AutotoolsPackage):
     depends_on('libfs')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/gccmakedep/package.py b/var/spack/repos/builtin/packages/gccmakedep/package.py
index a8ece20f43..0be991e041 100644
--- a/var/spack/repos/builtin/packages/gccmakedep/package.py
+++ b/var/spack/repos/builtin/packages/gccmakedep/package.py
@@ -33,4 +33,4 @@ class Gccmakedep(AutotoolsPackage):
 
     version('1.0.3', '127ddb6131eb4a56fdf6644a63ade788')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/gdk-pixbuf/package.py b/var/spack/repos/builtin/packages/gdk-pixbuf/package.py
index 63d24d64c4..8397883b3f 100644
--- a/var/spack/repos/builtin/packages/gdk-pixbuf/package.py
+++ b/var/spack/repos/builtin/packages/gdk-pixbuf/package.py
@@ -38,7 +38,7 @@ class GdkPixbuf(AutotoolsPackage):
 
     version('2.31.2', '6be6bbc4f356d4b79ab4226860ab8523')
 
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
     depends_on("gettext")
     depends_on("glib")
     depends_on("jpeg")
diff --git a/var/spack/repos/builtin/packages/ghostscript/package.py b/var/spack/repos/builtin/packages/ghostscript/package.py
index 991f77199e..937b509166 100644
--- a/var/spack/repos/builtin/packages/ghostscript/package.py
+++ b/var/spack/repos/builtin/packages/ghostscript/package.py
@@ -35,7 +35,7 @@ class Ghostscript(AutotoolsPackage):
     version('9.21', '5f213281761d2750fcf27476c404d17f')
     version('9.18', '33a47567d7a591c00a253caddd12a88a')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('freetype@2.4.2:')
     depends_on('jpeg')
diff --git a/var/spack/repos/builtin/packages/glib/package.py b/var/spack/repos/builtin/packages/glib/package.py
index 5997987fa6..50c0559bce 100644
--- a/var/spack/repos/builtin/packages/glib/package.py
+++ b/var/spack/repos/builtin/packages/glib/package.py
@@ -42,7 +42,7 @@ class Glib(AutotoolsPackage):
 
     variant('libmount', default=False, description='Build with libmount support')
 
-    depends_on('pkg-config@0.16:+internal_glib', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('libffi')
     depends_on('zlib')
     depends_on('gettext')
diff --git a/var/spack/repos/builtin/packages/glproto/package.py b/var/spack/repos/builtin/packages/glproto/package.py
index eaaabc884b..a8d51af7d1 100644
--- a/var/spack/repos/builtin/packages/glproto/package.py
+++ b/var/spack/repos/builtin/packages/glproto/package.py
@@ -36,5 +36,5 @@ class Glproto(AutotoolsPackage):
 
     version('1.4.17', 'd69554c1b51a83f2c6976a640819911b')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/gnuplot/package.py b/var/spack/repos/builtin/packages/gnuplot/package.py
index 1af9cbfb08..12e2f13f20 100644
--- a/var/spack/repos/builtin/packages/gnuplot/package.py
+++ b/var/spack/repos/builtin/packages/gnuplot/package.py
@@ -66,7 +66,7 @@ class Gnuplot(AutotoolsPackage):
 
     # required dependencies
     depends_on('readline')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('libxpm')
     depends_on('libiconv')
 
diff --git a/var/spack/repos/builtin/packages/gnutls/package.py b/var/spack/repos/builtin/packages/gnutls/package.py
index 7f41eb3204..6c4a47f814 100644
--- a/var/spack/repos/builtin/packages/gnutls/package.py
+++ b/var/spack/repos/builtin/packages/gnutls/package.py
@@ -49,7 +49,7 @@ class Gnutls(AutotoolsPackage):
     depends_on('zlib', when='+zlib')
     depends_on('gettext')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     build_directory = 'spack-build'
 
diff --git a/var/spack/repos/builtin/packages/gobject-introspection/package.py b/var/spack/repos/builtin/packages/gobject-introspection/package.py
index ec71e3cddd..2c2ff6078c 100644
--- a/var/spack/repos/builtin/packages/gobject-introspection/package.py
+++ b/var/spack/repos/builtin/packages/gobject-introspection/package.py
@@ -44,7 +44,7 @@ class GobjectIntrospection(Package):
     depends_on("cairo")
     depends_on("bison", type="build")
     depends_on("flex", type="build")
-    depends_on("pkg-config@0.9.0:", type="build")
+    depends_on("pkgconfig", type="build")
 
     # GobjectIntrospection does not build with sed from darwin:
     depends_on('sed', when='platform=darwin', type='build')
diff --git a/var/spack/repos/builtin/packages/gource/package.py b/var/spack/repos/builtin/packages/gource/package.py
index 3d9ddd1ff6..ee01fc3364 100644
--- a/var/spack/repos/builtin/packages/gource/package.py
+++ b/var/spack/repos/builtin/packages/gource/package.py
@@ -37,7 +37,7 @@ class Gource(AutotoolsPackage):
     depends_on('autoconf',   type='build')
     depends_on('libtool',    type='build')
     depends_on('glm',        type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('freetype@2.0:')
     depends_on('pcre')
diff --git a/var/spack/repos/builtin/packages/graphviz/package.py b/var/spack/repos/builtin/packages/graphviz/package.py
index 0ec35f09e8..5bcd78adc2 100644
--- a/var/spack/repos/builtin/packages/graphviz/package.py
+++ b/var/spack/repos/builtin/packages/graphviz/package.py
@@ -106,7 +106,7 @@ class Graphviz(AutotoolsPackage):
     depends_on('freetype')
     depends_on('expat')
     depends_on('libtool')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('java', when='+java')
     depends_on('python@2:2.8', when='+python')
diff --git a/var/spack/repos/builtin/packages/gtkplus/package.py b/var/spack/repos/builtin/packages/gtkplus/package.py
index 033c325eb6..a1501cb4a9 100644
--- a/var/spack/repos/builtin/packages/gtkplus/package.py
+++ b/var/spack/repos/builtin/packages/gtkplus/package.py
@@ -36,7 +36,7 @@ class Gtkplus(AutotoolsPackage):
 
     variant('X', default=False, description="Enable an X toolkit")
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on("atk")
     depends_on("gdk-pixbuf")
diff --git a/var/spack/repos/builtin/packages/guile/package.py b/var/spack/repos/builtin/packages/guile/package.py
index 81b61510be..328f02f005 100644
--- a/var/spack/repos/builtin/packages/guile/package.py
+++ b/var/spack/repos/builtin/packages/guile/package.py
@@ -45,7 +45,7 @@ class Guile(AutotoolsPackage):
     depends_on('bdw-gc@7.0:')
     depends_on('libffi')
     depends_on('readline', when='+readline')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     build_directory = 'spack-build'
 
diff --git a/var/spack/repos/builtin/packages/harfbuzz/package.py b/var/spack/repos/builtin/packages/harfbuzz/package.py
index 492a4694a8..f35f2f853f 100644
--- a/var/spack/repos/builtin/packages/harfbuzz/package.py
+++ b/var/spack/repos/builtin/packages/harfbuzz/package.py
@@ -33,7 +33,7 @@ class Harfbuzz(AutotoolsPackage):
     version('1.4.6', '21a78b81cd20cbffdb04b59ac7edfb410e42141869f637ae1d6778e74928d293')
     version('0.9.37', 'bfe733250e34629a188d82e3b971bc1e')
 
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
     depends_on("glib")
     depends_on("icu4c")
     depends_on("freetype")
diff --git a/var/spack/repos/builtin/packages/hoomd-blue/package.py b/var/spack/repos/builtin/packages/hoomd-blue/package.py
index 547a15ae6b..7a9933424a 100644
--- a/var/spack/repos/builtin/packages/hoomd-blue/package.py
+++ b/var/spack/repos/builtin/packages/hoomd-blue/package.py
@@ -71,7 +71,7 @@ class HoomdBlue(CMakePackage):
     depends_on('python@2.7:')
     depends_on('py-numpy@1.7:', type=('build', 'run'))
     depends_on('cmake@2.8.0:', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('mpi', when='+mpi')
     depends_on('cuda@7.0:', when='+cuda')
     depends_on('doxygen@1.8.5:', when='+doc', type='build')
diff --git a/var/spack/repos/builtin/packages/hpx5/package.py b/var/spack/repos/builtin/packages/hpx5/package.py
index dfc112fb24..f489a1bf9f 100644
--- a/var/spack/repos/builtin/packages/hpx5/package.py
+++ b/var/spack/repos/builtin/packages/hpx5/package.py
@@ -76,7 +76,7 @@ class Hpx5(AutotoolsPackage):
     depends_on("mpi", when='+photon')
     depends_on("opencl", when='+opencl')
     # depends_on("papi")
-    depends_on("pkg-config", type='build')
+    depends_on("pkgconfig", type='build')
 
     configure_directory = "hpx"
     build_directory = "spack-build"
diff --git a/var/spack/repos/builtin/packages/hwloc/package.py b/var/spack/repos/builtin/packages/hwloc/package.py
index 7961d930db..2af1cba322 100644
--- a/var/spack/repos/builtin/packages/hwloc/package.py
+++ b/var/spack/repos/builtin/packages/hwloc/package.py
@@ -62,7 +62,7 @@ class Hwloc(AutotoolsPackage):
     depends_on('cuda', when='+cuda')
     depends_on('libpciaccess', when='+pci')
     depends_on('libxml2', when='+libxml2')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     def url_for_version(self, version):
         return "http://www.open-mpi.org/software/hwloc/v%s/downloads/hwloc-%s.tar.gz" % (version.up_to(2), version)
diff --git a/var/spack/repos/builtin/packages/iceauth/package.py b/var/spack/repos/builtin/packages/iceauth/package.py
index a2f919be54..6f15312ebc 100644
--- a/var/spack/repos/builtin/packages/iceauth/package.py
+++ b/var/spack/repos/builtin/packages/iceauth/package.py
@@ -38,5 +38,5 @@ class Iceauth(AutotoolsPackage):
     depends_on('libice')
 
     depends_on('xproto@7.0.22:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/icedtea/package.py b/var/spack/repos/builtin/packages/icedtea/package.py
index 9bc7da3102..c8c992d0f5 100644
--- a/var/spack/repos/builtin/packages/icedtea/package.py
+++ b/var/spack/repos/builtin/packages/icedtea/package.py
@@ -42,7 +42,7 @@ class Icedtea(AutotoolsPackage):
     variant('shenandoah', default=False,
             description="Build with the shenandoah gc. Only for version 3+")
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('gmake', type='build')
     depends_on('cups')
     depends_on('jdk', type='build')
diff --git a/var/spack/repos/builtin/packages/ico/package.py b/var/spack/repos/builtin/packages/ico/package.py
index 7f627f5921..1e07bfa18c 100644
--- a/var/spack/repos/builtin/packages/ico/package.py
+++ b/var/spack/repos/builtin/packages/ico/package.py
@@ -39,5 +39,5 @@ class Ico(AutotoolsPackage):
     depends_on('libx11@0.99.1:')
 
     depends_on('xproto@7.0.22:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/imake/package.py b/var/spack/repos/builtin/packages/imake/package.py
index f3da05200b..01b8c28d98 100644
--- a/var/spack/repos/builtin/packages/imake/package.py
+++ b/var/spack/repos/builtin/packages/imake/package.py
@@ -34,4 +34,4 @@ class Imake(AutotoolsPackage):
     version('1.0.7', '186ca7b8ff0de8752f2a2d0426542363')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/inputproto/package.py b/var/spack/repos/builtin/packages/inputproto/package.py
index f60b08cacf..24ad2d20ab 100644
--- a/var/spack/repos/builtin/packages/inputproto/package.py
+++ b/var/spack/repos/builtin/packages/inputproto/package.py
@@ -36,5 +36,5 @@ class Inputproto(AutotoolsPackage):
 
     version('2.3.2', '6450bad6f8d5ebe354b01b734d1fd7ca')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/intel-gpu-tools/package.py b/var/spack/repos/builtin/packages/intel-gpu-tools/package.py
index 5238e57e32..9a96f34450 100644
--- a/var/spack/repos/builtin/packages/intel-gpu-tools/package.py
+++ b/var/spack/repos/builtin/packages/intel-gpu-tools/package.py
@@ -49,7 +49,7 @@ class IntelGpuTools(AutotoolsPackage):
     depends_on('flex', type='build')
     depends_on('bison', type='build')
     depends_on('python@3:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # xrandr ?
diff --git a/var/spack/repos/builtin/packages/ipopt/package.py b/var/spack/repos/builtin/packages/ipopt/package.py
index a9502a3e85..a536442dc3 100644
--- a/var/spack/repos/builtin/packages/ipopt/package.py
+++ b/var/spack/repos/builtin/packages/ipopt/package.py
@@ -47,7 +47,7 @@ class Ipopt(Package):
 
     depends_on("blas")
     depends_on("lapack")
-    depends_on("pkg-config", type='build')
+    depends_on("pkgconfig", type='build')
     depends_on("mumps+double~mpi")
     depends_on('coinhsl', when='+coinhsl')
     depends_on('metis@4.0:4.999', when='+metis')
diff --git a/var/spack/repos/builtin/packages/julia/package.py b/var/spack/repos/builtin/packages/julia/package.py
index fa6aaf3f95..6382475f97 100644
--- a/var/spack/repos/builtin/packages/julia/package.py
+++ b/var/spack/repos/builtin/packages/julia/package.py
@@ -66,7 +66,7 @@ class Julia(Package):
     # Build-time dependencies:
     # depends_on("awk")
     depends_on("m4", type="build")
-    # depends_on("pkg-config")
+    # depends_on("pkgconfig")
 
     # Combined build-time and run-time dependencies:
     # (Yes, these are run-time dependencies used by Julia's package manager.)
diff --git a/var/spack/repos/builtin/packages/kbproto/package.py b/var/spack/repos/builtin/packages/kbproto/package.py
index fa210e9101..7f767a8c8b 100644
--- a/var/spack/repos/builtin/packages/kbproto/package.py
+++ b/var/spack/repos/builtin/packages/kbproto/package.py
@@ -36,5 +36,5 @@ class Kbproto(AutotoolsPackage):
 
     version('1.0.7', '19acc5f02ae80381e216f443134e0bbb')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/lbxproxy/package.py b/var/spack/repos/builtin/packages/lbxproxy/package.py
index 6b5c4d0bc7..b5b4ef0fd7 100644
--- a/var/spack/repos/builtin/packages/lbxproxy/package.py
+++ b/var/spack/repos/builtin/packages/lbxproxy/package.py
@@ -48,5 +48,5 @@ class Lbxproxy(AutotoolsPackage):
     depends_on('xtrans', type='build')
     depends_on('xproxymanagementprotocol', type='build')
     depends_on('bigreqsproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libapplewm/package.py b/var/spack/repos/builtin/packages/libapplewm/package.py
index 146596081f..49eb23c9f4 100644
--- a/var/spack/repos/builtin/packages/libapplewm/package.py
+++ b/var/spack/repos/builtin/packages/libapplewm/package.py
@@ -40,7 +40,7 @@ class Libapplewm(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('applewmproto@1.4:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # Crashes with this error message on Linux:
diff --git a/var/spack/repos/builtin/packages/libbeagle/package.py b/var/spack/repos/builtin/packages/libbeagle/package.py
index 4d064a063b..68df3093ad 100644
--- a/var/spack/repos/builtin/packages/libbeagle/package.py
+++ b/var/spack/repos/builtin/packages/libbeagle/package.py
@@ -40,7 +40,7 @@ class Libbeagle(AutotoolsPackage):
     depends_on('m4',       type='build')
 
     depends_on('subversion', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     def url_for_version(self, version):
         url = "https://github.com/beagle-dev/beagle-lib/archive/beagle_release_{0}.tar.gz"
diff --git a/var/spack/repos/builtin/packages/libcanberra/package.py b/var/spack/repos/builtin/packages/libcanberra/package.py
index f7b8a78659..58fd706c29 100644
--- a/var/spack/repos/builtin/packages/libcanberra/package.py
+++ b/var/spack/repos/builtin/packages/libcanberra/package.py
@@ -55,7 +55,7 @@ class Libcanberra(AutotoolsPackage):
 
     depends_on('libvorbis')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     def configure_args(self):
         args = ['--enable-static']
diff --git a/var/spack/repos/builtin/packages/libdmx/package.py b/var/spack/repos/builtin/packages/libdmx/package.py
index c89323935f..383d82492b 100644
--- a/var/spack/repos/builtin/packages/libdmx/package.py
+++ b/var/spack/repos/builtin/packages/libdmx/package.py
@@ -39,5 +39,5 @@ class Libdmx(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('dmxproto@2.2.99.1:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libdrm/package.py b/var/spack/repos/builtin/packages/libdrm/package.py
index 521e097dc8..0038ab853c 100644
--- a/var/spack/repos/builtin/packages/libdrm/package.py
+++ b/var/spack/repos/builtin/packages/libdrm/package.py
@@ -39,7 +39,7 @@ class Libdrm(Package):
     version('2.4.59', '105ac7af1afcd742d402ca7b4eb168b6')
     version('2.4.33', '86e4e3debe7087d5404461e0032231c8')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('libpciaccess@0.10:', when=(sys.platform != 'darwin'))
     depends_on('libpthread-stubs')
 
diff --git a/var/spack/repos/builtin/packages/libemos/package.py b/var/spack/repos/builtin/packages/libemos/package.py
index 26febde67c..c14e7e10b7 100644
--- a/var/spack/repos/builtin/packages/libemos/package.py
+++ b/var/spack/repos/builtin/packages/libemos/package.py
@@ -49,7 +49,7 @@ class Libemos(CMakePackage):
     depends_on('grib-api', when='grib=grib-api')
     depends_on('fftw+float+double')
     depends_on('cmake@2.8.11:', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     conflicts('grib=eccodes', when='@:4.4.1',
               msg='Eccodes is supported starting version 4.4.2')
diff --git a/var/spack/repos/builtin/packages/libfontenc/package.py b/var/spack/repos/builtin/packages/libfontenc/package.py
index c5bc0478b2..e54d02543c 100644
--- a/var/spack/repos/builtin/packages/libfontenc/package.py
+++ b/var/spack/repos/builtin/packages/libfontenc/package.py
@@ -36,5 +36,5 @@ class Libfontenc(AutotoolsPackage):
     depends_on('zlib')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libfs/package.py b/var/spack/repos/builtin/packages/libfs/package.py
index 95d5708d2f..a7a6c1f855 100644
--- a/var/spack/repos/builtin/packages/libfs/package.py
+++ b/var/spack/repos/builtin/packages/libfs/package.py
@@ -39,5 +39,5 @@ class Libfs(AutotoolsPackage):
     depends_on('xproto@7.0.17:', type='build')
     depends_on('fontsproto', type='build')
     depends_on('xtrans', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libgd/package.py b/var/spack/repos/builtin/packages/libgd/package.py
index 22eb66d1c3..7a33123884 100644
--- a/var/spack/repos/builtin/packages/libgd/package.py
+++ b/var/spack/repos/builtin/packages/libgd/package.py
@@ -50,7 +50,7 @@ class Libgd(AutotoolsPackage):
     depends_on('libtool', type='build')
     depends_on('m4', type='build')
     depends_on('gettext', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     depends_on('libiconv')
     depends_on('libpng')
diff --git a/var/spack/repos/builtin/packages/libhio/package.py b/var/spack/repos/builtin/packages/libhio/package.py
index 3dae8b2b1d..cde2940149 100644
--- a/var/spack/repos/builtin/packages/libhio/package.py
+++ b/var/spack/repos/builtin/packages/libhio/package.py
@@ -38,4 +38,4 @@ class Libhio(AutotoolsPackage):
 
     depends_on("json-c")
     depends_on("bzip2")
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
diff --git a/var/spack/repos/builtin/packages/libice/package.py b/var/spack/repos/builtin/packages/libice/package.py
index 4ffc67ed9c..bb8c222456 100644
--- a/var/spack/repos/builtin/packages/libice/package.py
+++ b/var/spack/repos/builtin/packages/libice/package.py
@@ -35,5 +35,5 @@ class Libice(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('xtrans', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/liblbxutil/package.py b/var/spack/repos/builtin/packages/liblbxutil/package.py
index 90be9b3cdd..b202ac97d1 100644
--- a/var/spack/repos/builtin/packages/liblbxutil/package.py
+++ b/var/spack/repos/builtin/packages/liblbxutil/package.py
@@ -35,7 +35,7 @@ class Liblbxutil(AutotoolsPackage):
 
     depends_on('xextproto@7.0.99.1:', type='build')
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # There is a bug in the library that causes the following messages:
diff --git a/var/spack/repos/builtin/packages/liboldx/package.py b/var/spack/repos/builtin/packages/liboldx/package.py
index f03e0bfe88..3032f75456 100644
--- a/var/spack/repos/builtin/packages/liboldx/package.py
+++ b/var/spack/repos/builtin/packages/liboldx/package.py
@@ -35,5 +35,5 @@ class Liboldx(AutotoolsPackage):
 
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libpciaccess/package.py b/var/spack/repos/builtin/packages/libpciaccess/package.py
index 7c4efde8ca..7497cf73f0 100644
--- a/var/spack/repos/builtin/packages/libpciaccess/package.py
+++ b/var/spack/repos/builtin/packages/libpciaccess/package.py
@@ -35,5 +35,5 @@ class Libpciaccess(AutotoolsPackage):
     version('0.13.4', 'cc1fad87da60682af1d5fa43a5da45a4')
 
     depends_on('libtool', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libpipeline/package.py b/var/spack/repos/builtin/packages/libpipeline/package.py
index a242862b34..82bcd388c7 100644
--- a/var/spack/repos/builtin/packages/libpipeline/package.py
+++ b/var/spack/repos/builtin/packages/libpipeline/package.py
@@ -34,7 +34,7 @@ class Libpipeline(AutotoolsPackage):
 
     version('1.4.2', '30cec7bcd6fee723adea6a54389f3da2')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     # TODO: Add a 'test' deptype
     # See https://github.com/spack/spack/issues/1279
     # depends_on('check', type='test')
diff --git a/var/spack/repos/builtin/packages/libpsl/package.py b/var/spack/repos/builtin/packages/libpsl/package.py
index 75722c63fd..f0aa8572c4 100644
--- a/var/spack/repos/builtin/packages/libpsl/package.py
+++ b/var/spack/repos/builtin/packages/libpsl/package.py
@@ -36,7 +36,7 @@ class Libpsl(AutotoolsPackage):
     depends_on('icu4c')
 
     depends_on('gettext', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('python@2.7:', type='build')
 
     depends_on('valgrind~mpi~boost', type='test')
diff --git a/var/spack/repos/builtin/packages/libsm/package.py b/var/spack/repos/builtin/packages/libsm/package.py
index 602f5daa56..a8937074fb 100644
--- a/var/spack/repos/builtin/packages/libsm/package.py
+++ b/var/spack/repos/builtin/packages/libsm/package.py
@@ -37,5 +37,5 @@ class Libsm(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('xtrans', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libvorbis/package.py b/var/spack/repos/builtin/packages/libvorbis/package.py
index 6a3561fb1a..b472f5a886 100644
--- a/var/spack/repos/builtin/packages/libvorbis/package.py
+++ b/var/spack/repos/builtin/packages/libvorbis/package.py
@@ -38,7 +38,7 @@ class Libvorbis(AutotoolsPackage):
 
     depends_on('libogg')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     # `make check` crashes when run in parallel
     parallel = False
diff --git a/var/spack/repos/builtin/packages/libwindowswm/package.py b/var/spack/repos/builtin/packages/libwindowswm/package.py
index ffbff1f652..32a7165d54 100644
--- a/var/spack/repos/builtin/packages/libwindowswm/package.py
+++ b/var/spack/repos/builtin/packages/libwindowswm/package.py
@@ -43,5 +43,5 @@ class Libwindowswm(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('windowswmproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libx11/package.py b/var/spack/repos/builtin/packages/libx11/package.py
index 9658fab352..9840c8b634 100644
--- a/var/spack/repos/builtin/packages/libx11/package.py
+++ b/var/spack/repos/builtin/packages/libx11/package.py
@@ -41,6 +41,6 @@ class Libx11(AutotoolsPackage):
     depends_on('xtrans', type='build')
     depends_on('kbproto', type=('build', 'link'))
     depends_on('inputproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
     depends_on('perl', type='build')
diff --git a/var/spack/repos/builtin/packages/libxau/package.py b/var/spack/repos/builtin/packages/libxau/package.py
index 64f9a3a526..a588bd6ae5 100644
--- a/var/spack/repos/builtin/packages/libxau/package.py
+++ b/var/spack/repos/builtin/packages/libxau/package.py
@@ -36,5 +36,5 @@ class Libxau(AutotoolsPackage):
     version('1.0.8', 'a85cd601d82bc79c0daa280917572e20')
 
     depends_on('xproto', type=('build', 'link'))
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxaw/package.py b/var/spack/repos/builtin/packages/libxaw/package.py
index 7470ce2f72..f1e8b1c25a 100644
--- a/var/spack/repos/builtin/packages/libxaw/package.py
+++ b/var/spack/repos/builtin/packages/libxaw/package.py
@@ -42,5 +42,5 @@ class Libxaw(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxaw3d/package.py b/var/spack/repos/builtin/packages/libxaw3d/package.py
index 13137d622f..7087604822 100644
--- a/var/spack/repos/builtin/packages/libxaw3d/package.py
+++ b/var/spack/repos/builtin/packages/libxaw3d/package.py
@@ -40,5 +40,5 @@ class Libxaw3d(AutotoolsPackage):
     depends_on('libxext')
     depends_on('libxpm')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxcb/package.py b/var/spack/repos/builtin/packages/libxcb/package.py
index cbca3bfd39..7cc1a068d0 100644
--- a/var/spack/repos/builtin/packages/libxcb/package.py
+++ b/var/spack/repos/builtin/packages/libxcb/package.py
@@ -45,7 +45,7 @@ class Libxcb(AutotoolsPackage):
     depends_on('xcb-proto', type='build')
     # TODO: uncomment once build deps can be resolved separately
     # depends_on('python@2:2.8', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def patch(self):
diff --git a/var/spack/repos/builtin/packages/libxcomposite/package.py b/var/spack/repos/builtin/packages/libxcomposite/package.py
index b408a08394..840659b337 100644
--- a/var/spack/repos/builtin/packages/libxcomposite/package.py
+++ b/var/spack/repos/builtin/packages/libxcomposite/package.py
@@ -38,5 +38,5 @@ class Libxcomposite(AutotoolsPackage):
     depends_on('libxfixes')
 
     depends_on('compositeproto@0.4:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxcursor/package.py b/var/spack/repos/builtin/packages/libxcursor/package.py
index ec6b4d28f1..b9ec94d06a 100644
--- a/var/spack/repos/builtin/packages/libxcursor/package.py
+++ b/var/spack/repos/builtin/packages/libxcursor/package.py
@@ -38,5 +38,5 @@ class Libxcursor(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('fixesproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxdamage/package.py b/var/spack/repos/builtin/packages/libxdamage/package.py
index 948e266aba..0a69b62971 100644
--- a/var/spack/repos/builtin/packages/libxdamage/package.py
+++ b/var/spack/repos/builtin/packages/libxdamage/package.py
@@ -39,5 +39,5 @@ class Libxdamage(AutotoolsPackage):
     depends_on('damageproto@1.1:', type='build')
     depends_on('fixesproto', type='build')
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxdmcp/package.py b/var/spack/repos/builtin/packages/libxdmcp/package.py
index 093aa90dd3..fa6368dae4 100644
--- a/var/spack/repos/builtin/packages/libxdmcp/package.py
+++ b/var/spack/repos/builtin/packages/libxdmcp/package.py
@@ -34,5 +34,5 @@ class Libxdmcp(AutotoolsPackage):
     version('1.1.2', 'ab0d6a38f0344a05d698ec7d48cfa5a8')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxevie/package.py b/var/spack/repos/builtin/packages/libxevie/package.py
index 0ad59c24ee..e7e5c5aeac 100644
--- a/var/spack/repos/builtin/packages/libxevie/package.py
+++ b/var/spack/repos/builtin/packages/libxevie/package.py
@@ -39,5 +39,5 @@ class Libxevie(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('xextproto', type='build')
     depends_on('evieext', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxext/package.py b/var/spack/repos/builtin/packages/libxext/package.py
index 2ecdad7be5..3ea058b95e 100644
--- a/var/spack/repos/builtin/packages/libxext/package.py
+++ b/var/spack/repos/builtin/packages/libxext/package.py
@@ -37,5 +37,5 @@ class Libxext(AutotoolsPackage):
 
     depends_on('xproto@7.0.13:', type='build')
     depends_on('xextproto@7.1.99:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxfixes/package.py b/var/spack/repos/builtin/packages/libxfixes/package.py
index 5c18e389f1..3c8d10189e 100644
--- a/var/spack/repos/builtin/packages/libxfixes/package.py
+++ b/var/spack/repos/builtin/packages/libxfixes/package.py
@@ -39,5 +39,5 @@ class Libxfixes(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('fixesproto@5.0:', type='build')
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxfont/package.py b/var/spack/repos/builtin/packages/libxfont/package.py
index 4d08c4db71..618c26baa1 100644
--- a/var/spack/repos/builtin/packages/libxfont/package.py
+++ b/var/spack/repos/builtin/packages/libxfont/package.py
@@ -44,5 +44,5 @@ class Libxfont(AutotoolsPackage):
     depends_on('xtrans', type='build')
     depends_on('xproto', type='build')
     depends_on('fontsproto@2.1.3:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxfont2/package.py b/var/spack/repos/builtin/packages/libxfont2/package.py
index b2a6a793cd..e7c943b5c9 100644
--- a/var/spack/repos/builtin/packages/libxfont2/package.py
+++ b/var/spack/repos/builtin/packages/libxfont2/package.py
@@ -44,5 +44,5 @@ class Libxfont2(AutotoolsPackage):
     depends_on('xtrans', type='build')
     depends_on('xproto', type='build')
     depends_on('fontsproto@2.1.3:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxfontcache/package.py b/var/spack/repos/builtin/packages/libxfontcache/package.py
index d113cda057..d93afbb967 100644
--- a/var/spack/repos/builtin/packages/libxfontcache/package.py
+++ b/var/spack/repos/builtin/packages/libxfontcache/package.py
@@ -38,5 +38,5 @@ class Libxfontcache(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('fontcacheproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxft/package.py b/var/spack/repos/builtin/packages/libxft/package.py
index 63f9236302..7cb66d6d9b 100644
--- a/var/spack/repos/builtin/packages/libxft/package.py
+++ b/var/spack/repos/builtin/packages/libxft/package.py
@@ -42,5 +42,5 @@ class Libxft(AutotoolsPackage):
     depends_on('libx11')
     depends_on('libxrender@0.8.2:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxinerama/package.py b/var/spack/repos/builtin/packages/libxinerama/package.py
index 74ec63f266..d66688e66a 100644
--- a/var/spack/repos/builtin/packages/libxinerama/package.py
+++ b/var/spack/repos/builtin/packages/libxinerama/package.py
@@ -38,5 +38,5 @@ class Libxinerama(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('xineramaproto@1.1.99.1:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxkbfile/package.py b/var/spack/repos/builtin/packages/libxkbfile/package.py
index c345a8a362..807039897a 100644
--- a/var/spack/repos/builtin/packages/libxkbfile/package.py
+++ b/var/spack/repos/builtin/packages/libxkbfile/package.py
@@ -36,5 +36,5 @@ class Libxkbfile(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('kbproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxkbui/package.py b/var/spack/repos/builtin/packages/libxkbui/package.py
index eb34053918..57cf85b6dd 100644
--- a/var/spack/repos/builtin/packages/libxkbui/package.py
+++ b/var/spack/repos/builtin/packages/libxkbui/package.py
@@ -37,5 +37,5 @@ class Libxkbui(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libxkbfile')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxml2/package.py b/var/spack/repos/builtin/packages/libxml2/package.py
index 87bbb965b8..4cef51f8b5 100644
--- a/var/spack/repos/builtin/packages/libxml2/package.py
+++ b/var/spack/repos/builtin/packages/libxml2/package.py
@@ -44,7 +44,7 @@ class Libxml2(AutotoolsPackage):
     depends_on('zlib')
     depends_on('xz')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     def configure_args(self):
         spec = self.spec
diff --git a/var/spack/repos/builtin/packages/libxmu/package.py b/var/spack/repos/builtin/packages/libxmu/package.py
index bb3f168d6a..9e6f39c408 100644
--- a/var/spack/repos/builtin/packages/libxmu/package.py
+++ b/var/spack/repos/builtin/packages/libxmu/package.py
@@ -41,5 +41,5 @@ class Libxmu(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxp/package.py b/var/spack/repos/builtin/packages/libxp/package.py
index f18d4b89c9..ed5e8e2198 100644
--- a/var/spack/repos/builtin/packages/libxp/package.py
+++ b/var/spack/repos/builtin/packages/libxp/package.py
@@ -39,5 +39,5 @@ class Libxp(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('printproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxpm/package.py b/var/spack/repos/builtin/packages/libxpm/package.py
index 11ede1fe88..6d507a7e84 100644
--- a/var/spack/repos/builtin/packages/libxpm/package.py
+++ b/var/spack/repos/builtin/packages/libxpm/package.py
@@ -42,7 +42,7 @@ class Libxpm(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def setup_environment(self, spack_env, run_env):
diff --git a/var/spack/repos/builtin/packages/libxpresent/package.py b/var/spack/repos/builtin/packages/libxpresent/package.py
index 286bf89fb8..7e5585eb0d 100644
--- a/var/spack/repos/builtin/packages/libxpresent/package.py
+++ b/var/spack/repos/builtin/packages/libxpresent/package.py
@@ -39,5 +39,5 @@ class Libxpresent(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('presentproto@1.0:', type='build')
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxprintapputil/package.py b/var/spack/repos/builtin/packages/libxprintapputil/package.py
index a6d2838d4d..6715d2a8f5 100644
--- a/var/spack/repos/builtin/packages/libxprintapputil/package.py
+++ b/var/spack/repos/builtin/packages/libxprintapputil/package.py
@@ -39,5 +39,5 @@ class Libxprintapputil(AutotoolsPackage):
     depends_on('libxau')
 
     depends_on('printproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxprintutil/package.py b/var/spack/repos/builtin/packages/libxprintutil/package.py
index 9bd765e1b6..3e795b9140 100644
--- a/var/spack/repos/builtin/packages/libxprintutil/package.py
+++ b/var/spack/repos/builtin/packages/libxprintutil/package.py
@@ -39,5 +39,5 @@ class Libxprintutil(AutotoolsPackage):
     depends_on('libxau')
 
     depends_on('printproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxrandr/package.py b/var/spack/repos/builtin/packages/libxrandr/package.py
index 2ee8f76acb..a7a44028fb 100644
--- a/var/spack/repos/builtin/packages/libxrandr/package.py
+++ b/var/spack/repos/builtin/packages/libxrandr/package.py
@@ -40,5 +40,5 @@ class Libxrandr(AutotoolsPackage):
     depends_on('randrproto@1.5:', type='build')
     depends_on('xextproto', type='build')
     depends_on('renderproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxrender/package.py b/var/spack/repos/builtin/packages/libxrender/package.py
index 49ed107daa..c931530d1c 100644
--- a/var/spack/repos/builtin/packages/libxrender/package.py
+++ b/var/spack/repos/builtin/packages/libxrender/package.py
@@ -37,5 +37,5 @@ class Libxrender(AutotoolsPackage):
     depends_on('libx11@1.6:')
 
     depends_on('renderproto@0.9:', type=('build', 'link'))
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxres/package.py b/var/spack/repos/builtin/packages/libxres/package.py
index eb691f8835..2bf708d4e9 100644
--- a/var/spack/repos/builtin/packages/libxres/package.py
+++ b/var/spack/repos/builtin/packages/libxres/package.py
@@ -38,5 +38,5 @@ class Libxres(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('resourceproto@1.0:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxscrnsaver/package.py b/var/spack/repos/builtin/packages/libxscrnsaver/package.py
index ec68e8d395..9bb6bc1e08 100644
--- a/var/spack/repos/builtin/packages/libxscrnsaver/package.py
+++ b/var/spack/repos/builtin/packages/libxscrnsaver/package.py
@@ -38,5 +38,5 @@ class Libxscrnsaver(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('scrnsaverproto@1.2:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxshmfence/package.py b/var/spack/repos/builtin/packages/libxshmfence/package.py
index fea8c64fdd..6b8e5e2c95 100644
--- a/var/spack/repos/builtin/packages/libxshmfence/package.py
+++ b/var/spack/repos/builtin/packages/libxshmfence/package.py
@@ -38,5 +38,5 @@ class Libxshmfence(AutotoolsPackage):
     version('1.2', 'f0b30c0fc568b22ec524859ee28556f1')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxt/package.py b/var/spack/repos/builtin/packages/libxt/package.py
index b3e2ac4e63..4cb68c2cd2 100644
--- a/var/spack/repos/builtin/packages/libxt/package.py
+++ b/var/spack/repos/builtin/packages/libxt/package.py
@@ -39,5 +39,5 @@ class Libxt(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('kbproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxtrap/package.py b/var/spack/repos/builtin/packages/libxtrap/package.py
index 83405cf48d..3d6dee29fc 100644
--- a/var/spack/repos/builtin/packages/libxtrap/package.py
+++ b/var/spack/repos/builtin/packages/libxtrap/package.py
@@ -48,5 +48,5 @@ class Libxtrap(AutotoolsPackage):
 
     depends_on('trapproto', type='build')
     depends_on('xextproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxtst/package.py b/var/spack/repos/builtin/packages/libxtst/package.py
index 9b6b4093ba..e79e6a8fb8 100644
--- a/var/spack/repos/builtin/packages/libxtst/package.py
+++ b/var/spack/repos/builtin/packages/libxtst/package.py
@@ -50,5 +50,5 @@ class Libxtst(AutotoolsPackage):
     depends_on('xextproto@7.0.99.3:', type='build')
     depends_on('inputproto', type='build')
     depends_on('fixesproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxv/package.py b/var/spack/repos/builtin/packages/libxv/package.py
index e29ec91b84..7691006e12 100644
--- a/var/spack/repos/builtin/packages/libxv/package.py
+++ b/var/spack/repos/builtin/packages/libxv/package.py
@@ -39,5 +39,5 @@ class Libxv(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('videoproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxvmc/package.py b/var/spack/repos/builtin/packages/libxvmc/package.py
index 42e56618a4..5c6c8f95dd 100644
--- a/var/spack/repos/builtin/packages/libxvmc/package.py
+++ b/var/spack/repos/builtin/packages/libxvmc/package.py
@@ -39,5 +39,5 @@ class Libxvmc(AutotoolsPackage):
 
     depends_on('xextproto', type='build')
     depends_on('videoproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxxf86dga/package.py b/var/spack/repos/builtin/packages/libxxf86dga/package.py
index f92ff7fb63..e2a52e7ee8 100644
--- a/var/spack/repos/builtin/packages/libxxf86dga/package.py
+++ b/var/spack/repos/builtin/packages/libxxf86dga/package.py
@@ -39,5 +39,5 @@ class Libxxf86dga(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('xextproto', type='build')
     depends_on('xf86dgaproto@2.0.99.2:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxxf86misc/package.py b/var/spack/repos/builtin/packages/libxxf86misc/package.py
index 8b161008f8..29aa52eadf 100644
--- a/var/spack/repos/builtin/packages/libxxf86misc/package.py
+++ b/var/spack/repos/builtin/packages/libxxf86misc/package.py
@@ -39,5 +39,5 @@ class Libxxf86misc(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('xextproto', type='build')
     depends_on('xf86miscproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/libxxf86vm/package.py b/var/spack/repos/builtin/packages/libxxf86vm/package.py
index 6b2cf951ed..6045c890aa 100644
--- a/var/spack/repos/builtin/packages/libxxf86vm/package.py
+++ b/var/spack/repos/builtin/packages/libxxf86vm/package.py
@@ -39,5 +39,5 @@ class Libxxf86vm(AutotoolsPackage):
     depends_on('xproto', type='build')
     depends_on('xextproto', type='build')
     depends_on('xf86vidmodeproto@2.2.99.1:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/listres/package.py b/var/spack/repos/builtin/packages/listres/package.py
index 783b4f48d6..0da87ced95 100644
--- a/var/spack/repos/builtin/packages/listres/package.py
+++ b/var/spack/repos/builtin/packages/listres/package.py
@@ -39,5 +39,5 @@ class Listres(AutotoolsPackage):
     depends_on('libxmu')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/lndir/package.py b/var/spack/repos/builtin/packages/lndir/package.py
index 071ce420d8..317552527e 100644
--- a/var/spack/repos/builtin/packages/lndir/package.py
+++ b/var/spack/repos/builtin/packages/lndir/package.py
@@ -35,4 +35,4 @@ class Lndir(AutotoolsPackage):
     version('1.0.3', '7173b2e4832658d319c2980a7c834205')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/luit/package.py b/var/spack/repos/builtin/packages/luit/package.py
index 47eb6be44c..aac3ff00e3 100644
--- a/var/spack/repos/builtin/packages/luit/package.py
+++ b/var/spack/repos/builtin/packages/luit/package.py
@@ -39,7 +39,7 @@ class Luit(Package):
     depends_on('libfontenc')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/magics/package.py b/var/spack/repos/builtin/packages/magics/package.py
index a3a5c49946..0f4c611b22 100644
--- a/var/spack/repos/builtin/packages/magics/package.py
+++ b/var/spack/repos/builtin/packages/magics/package.py
@@ -68,7 +68,7 @@ class Magics(CMakePackage):
 
     # Build dependencies
     depends_on('cmake@2.8.11:', type='build')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('python@:2', type='build')
     depends_on('perl', type='build')
     depends_on('perl-xml-parser', type='build')
diff --git a/var/spack/repos/builtin/packages/makedepend/package.py b/var/spack/repos/builtin/packages/makedepend/package.py
index 41edb6ed69..862d18dc5b 100644
--- a/var/spack/repos/builtin/packages/makedepend/package.py
+++ b/var/spack/repos/builtin/packages/makedepend/package.py
@@ -34,4 +34,4 @@ class Makedepend(AutotoolsPackage):
     version('1.0.5', 'efb2d7c7e22840947863efaedc175747')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/mesa/package.py b/var/spack/repos/builtin/packages/mesa/package.py
index af8c20ae52..9b91f8f332 100644
--- a/var/spack/repos/builtin/packages/mesa/package.py
+++ b/var/spack/repos/builtin/packages/mesa/package.py
@@ -54,7 +54,7 @@ class Mesa(AutotoolsPackage):
             description="Use llvm for rendering pipes.")
 
     # General dependencies
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('flex@2.5.35:', type='build')
     depends_on('bison@2.4.1:', type='build')
     depends_on('binutils', type='build')
diff --git a/var/spack/repos/builtin/packages/mkfontdir/package.py b/var/spack/repos/builtin/packages/mkfontdir/package.py
index f1f12b514e..19ec4c3f86 100644
--- a/var/spack/repos/builtin/packages/mkfontdir/package.py
+++ b/var/spack/repos/builtin/packages/mkfontdir/package.py
@@ -37,5 +37,5 @@ class Mkfontdir(AutotoolsPackage):
 
     depends_on('mkfontscale', type='run')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/mkfontscale/package.py b/var/spack/repos/builtin/packages/mkfontscale/package.py
index 9e8945f045..02e0bf23c6 100644
--- a/var/spack/repos/builtin/packages/mkfontscale/package.py
+++ b/var/spack/repos/builtin/packages/mkfontscale/package.py
@@ -38,5 +38,5 @@ class Mkfontscale(AutotoolsPackage):
     depends_on('freetype')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/mozjs/package.py b/var/spack/repos/builtin/packages/mozjs/package.py
index b0e98772af..8343706f93 100644
--- a/var/spack/repos/builtin/packages/mozjs/package.py
+++ b/var/spack/repos/builtin/packages/mozjs/package.py
@@ -40,7 +40,7 @@ class Mozjs(AutotoolsPackage):
             url="http://ftp.mozilla.org/pub/js/js185-1.0.0.tar.gz")
 
     depends_on('perl@5.6:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('python@2.7.3:2.8', type='build')
     depends_on('nspr', when='@:27')
     depends_on('libffi@3.0.9:')
diff --git a/var/spack/repos/builtin/packages/nauty/package.py b/var/spack/repos/builtin/packages/nauty/package.py
index ef032ad7c9..cf9e40a959 100644
--- a/var/spack/repos/builtin/packages/nauty/package.py
+++ b/var/spack/repos/builtin/packages/nauty/package.py
@@ -74,7 +74,7 @@ class Nauty(AutotoolsPackage):
     depends_on('autoconf',  type='build', when='@2.6r7')
     depends_on('automake',  type='build', when='@2.6r7')
     depends_on('libtool',  type='build', when='@2.6r7')
-    depends_on('pkg-config',  type='build')
+    depends_on('pkgconfig',  type='build')
     depends_on('help2man', type='build')
     depends_on('zlib')
     depends_on('gmp')
diff --git a/var/spack/repos/builtin/packages/ncurses/package.py b/var/spack/repos/builtin/packages/ncurses/package.py
index 06ffc0b650..9787568bb6 100644
--- a/var/spack/repos/builtin/packages/ncurses/package.py
+++ b/var/spack/repos/builtin/packages/ncurses/package.py
@@ -45,7 +45,7 @@ class Ncurses(AutotoolsPackage):
     variant('symlinks', default=False,
             description='Enables symlinks. Needed on AFS filesystem.')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     patch('patch_gcc_5.txt', when='@6.0%gcc@5.0:')
     patch('sed_pgi.patch',   when='@:6.0')
diff --git a/var/spack/repos/builtin/packages/node-js/package.py b/var/spack/repos/builtin/packages/node-js/package.py
index 0b7e942400..1e8deef7d2 100644
--- a/var/spack/repos/builtin/packages/node-js/package.py
+++ b/var/spack/repos/builtin/packages/node-js/package.py
@@ -46,7 +46,7 @@ class NodeJs(Package):
     variant('zlib', default=True,  description='Build with Spacks zlib instead of the bundled version')
 
     depends_on('libtool', type='build', when=sys.platform != 'darwin')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('python@2.7:2.8', type='build')
     # depends_on('bash-completion', when="+bash-completion")
     depends_on('icu4c', when='+icu4c')
diff --git a/var/spack/repos/builtin/packages/oclock/package.py b/var/spack/repos/builtin/packages/oclock/package.py
index 2d3a40457f..d74aff3f73 100644
--- a/var/spack/repos/builtin/packages/oclock/package.py
+++ b/var/spack/repos/builtin/packages/oclock/package.py
@@ -40,5 +40,5 @@ class Oclock(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libxkbfile')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/octave/package.py b/var/spack/repos/builtin/packages/octave/package.py
index 79dc74b518..ede501a77d 100644
--- a/var/spack/repos/builtin/packages/octave/package.py
+++ b/var/spack/repos/builtin/packages/octave/package.py
@@ -76,7 +76,7 @@ class Octave(AutotoolsPackage):
     # Octave does not configure with sed from darwin:
     depends_on('sed', when=sys.platform == 'darwin', type='build')
     depends_on('pcre')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     # Strongly recommended dependencies
     depends_on('readline',     when='+readline')
diff --git a/var/spack/repos/builtin/packages/openbabel/package.py b/var/spack/repos/builtin/packages/openbabel/package.py
index b88693d531..05e6e0c784 100644
--- a/var/spack/repos/builtin/packages/openbabel/package.py
+++ b/var/spack/repos/builtin/packages/openbabel/package.py
@@ -42,7 +42,7 @@ class Openbabel(CMakePackage):
 
     depends_on('python', type=('build', 'run'), when='+python')
     depends_on('cmake@2.4.8:', type='build')
-    depends_on('pkg-config',   type='build')
+    depends_on('pkgconfig',   type='build')
     depends_on('cairo')       # required to support PNG depiction
     depends_on('eigen@3.0:')  # required if using the language bindings
     depends_on('libxml2')     # required to read/write CML files, XML formats
diff --git a/var/spack/repos/builtin/packages/openexr/package.py b/var/spack/repos/builtin/packages/openexr/package.py
index ad463bc792..2d81b9419d 100644
--- a/var/spack/repos/builtin/packages/openexr/package.py
+++ b/var/spack/repos/builtin/packages/openexr/package.py
@@ -43,7 +43,7 @@ class Openexr(Package):
     variant('debug', default=False,
             description='Builds a debug version of the libraries')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('ilmbase')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/pango/package.py b/var/spack/repos/builtin/packages/pango/package.py
index 26ba05df6a..c4989063c4 100644
--- a/var/spack/repos/builtin/packages/pango/package.py
+++ b/var/spack/repos/builtin/packages/pango/package.py
@@ -41,7 +41,7 @@ class Pango(AutotoolsPackage):
 
     variant('X', default=False, description="Enable an X toolkit")
 
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
     depends_on("harfbuzz")
     depends_on("cairo")
     depends_on("cairo~X", when='~X')
diff --git a/var/spack/repos/builtin/packages/pixman/package.py b/var/spack/repos/builtin/packages/pixman/package.py
index 4191550803..b81660900d 100644
--- a/var/spack/repos/builtin/packages/pixman/package.py
+++ b/var/spack/repos/builtin/packages/pixman/package.py
@@ -37,7 +37,7 @@ class Pixman(AutotoolsPackage):
     version('0.34.0', 'e80ebae4da01e77f68744319f01d52a3')
     version('0.32.6', '3a30859719a41bd0f5cccffbfefdd4c2')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('libpng')
 
     def configure_args(self):
diff --git a/var/spack/repos/builtin/packages/pkg-config/package.py b/var/spack/repos/builtin/packages/pkg-config/package.py
index 22a8833a11..44e03c7401 100644
--- a/var/spack/repos/builtin/packages/pkg-config/package.py
+++ b/var/spack/repos/builtin/packages/pkg-config/package.py
@@ -36,6 +36,8 @@ class PkgConfig(AutotoolsPackage):
     version('0.29.1', 'f739a28cae4e0ca291f82d1d41ef107d')
     version('0.28',   'aa3c86e67551adc3ac865160e34a2a0d')
 
+    provides('pkgconfig')
+
     variant('internal_glib', default=True,
             description='Builds with internal glib')
 
diff --git a/var/spack/repos/builtin/packages/pkgconf/package.py b/var/spack/repos/builtin/packages/pkgconf/package.py
index 7b4b570945..fa1bdf3566 100644
--- a/var/spack/repos/builtin/packages/pkgconf/package.py
+++ b/var/spack/repos/builtin/packages/pkgconf/package.py
@@ -32,10 +32,13 @@ class Pkgconf(AutotoolsPackage):
     maintaining compatibility."""
 
     homepage = "http://pkgconf.org/"
-    url      = "https://distfiles.dereferenced.org/pkgconf/pkgconf-1.3.8.tar.xz"
+    url      = "https://distfiles.dereferenced.org/pkgconf/pkgconf-1.3.10.tar.xz"
 
+    version('1.3.10', '9b63707bf6f8da6efb3868101d7525fe')
     version('1.3.8', '484ba3360d983ce07416843d5bc916a8')
 
+    provides('pkgconfig')
+
     @run_after('install')
     def link_pkg_config(self):
         symlink('pkgconf', '{0}/pkg-config'.format(self.prefix.bin))
diff --git a/var/spack/repos/builtin/packages/pocl/package.py b/var/spack/repos/builtin/packages/pocl/package.py
index 38c794062b..c4a7f7ca83 100644
--- a/var/spack/repos/builtin/packages/pocl/package.py
+++ b/var/spack/repos/builtin/packages/pocl/package.py
@@ -62,7 +62,7 @@ class Pocl(CMakePackage):
     # enabled by default, and also because they fail to build for us
     # (see #1616)
     depends_on("llvm +clang")
-    depends_on("pkg-config", type="build")
+    depends_on("pkgconfig", type="build")
 
     # These are the supported LLVM versions
     depends_on("llvm @3.7:3.9", when="@master")
diff --git a/var/spack/repos/builtin/packages/presentproto/package.py b/var/spack/repos/builtin/packages/presentproto/package.py
index e31490a07c..4b72c9fdef 100644
--- a/var/spack/repos/builtin/packages/presentproto/package.py
+++ b/var/spack/repos/builtin/packages/presentproto/package.py
@@ -33,5 +33,5 @@ class Presentproto(AutotoolsPackage):
 
     version('1.0', '57eaf4bb58e86476ec89cfb42d675961')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/printproto/package.py b/var/spack/repos/builtin/packages/printproto/package.py
index c3d0e28e8f..a02d43ec10 100644
--- a/var/spack/repos/builtin/packages/printproto/package.py
+++ b/var/spack/repos/builtin/packages/printproto/package.py
@@ -34,5 +34,5 @@ class Printproto(AutotoolsPackage):
 
     version('1.0.5', '5afeb3a7de8a14b417239a14ea724268')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/proxymngr/package.py b/var/spack/repos/builtin/packages/proxymngr/package.py
index cc38d6ae55..7bd539642b 100644
--- a/var/spack/repos/builtin/packages/proxymngr/package.py
+++ b/var/spack/repos/builtin/packages/proxymngr/package.py
@@ -42,5 +42,5 @@ class Proxymngr(AutotoolsPackage):
 
     depends_on('xproto@7.0.17:', type='build')
     depends_on('xproxymanagementprotocol', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/py-h5py/package.py b/var/spack/repos/builtin/packages/py-h5py/package.py
index 3375b762a9..a5c1f6619c 100644
--- a/var/spack/repos/builtin/packages/py-h5py/package.py
+++ b/var/spack/repos/builtin/packages/py-h5py/package.py
@@ -40,7 +40,7 @@ class PyH5py(PythonPackage):
 
     # Build dependencies
     depends_on('py-cython@0.19:', type='build')
-    depends_on('py-pkgconfig', type='build')
+    depends_on('py-pkgconfigig', type='build')
     depends_on('py-setuptools', type='build')
     depends_on('hdf5@1.8.4:+hl')
     depends_on('hdf5+mpi', when='+mpi')
diff --git a/var/spack/repos/builtin/packages/py-matplotlib/package.py b/var/spack/repos/builtin/packages/py-matplotlib/package.py
index cd9abd2bc1..acdee085bb 100644
--- a/var/spack/repos/builtin/packages/py-matplotlib/package.py
+++ b/var/spack/repos/builtin/packages/py-matplotlib/package.py
@@ -86,7 +86,7 @@ class PyMatplotlib(PythonPackage):
     depends_on('image-magick', when='+animation')
 
     # --------- Optional dependencies
-    depends_on('pkg-config', type='build')    # why not...
+    depends_on('pkgconfig', type='build')    # why not...
     depends_on('pil', when='+image', type=('build', 'run'))
     depends_on('py-ipython', when='+ipython', type=('build', 'run'))
     depends_on('ghostscript', when='+latex', type='run')
diff --git a/var/spack/repos/builtin/packages/py-pkgconfig/package.py b/var/spack/repos/builtin/packages/py-pkgconfig/package.py
index eb3be23871..501da31cdd 100644
--- a/var/spack/repos/builtin/packages/py-pkgconfig/package.py
+++ b/var/spack/repos/builtin/packages/py-pkgconfig/package.py
@@ -36,7 +36,7 @@ class PyPkgconfig(PythonPackage):
     depends_on('python@2.6:')
     depends_on('py-setuptools', type='build')
 
-    depends_on('pkg-config', type=('build', 'run'))
+    depends_on('pkgconfig', type=('build', 'run'))
 
     # TODO: Add a 'test' deptype
     # depends_on('py-nose@1.0:', type='test')
diff --git a/var/spack/repos/builtin/packages/py-py2cairo/package.py b/var/spack/repos/builtin/packages/py-py2cairo/package.py
index 30e363885d..6921d86dd1 100644
--- a/var/spack/repos/builtin/packages/py-py2cairo/package.py
+++ b/var/spack/repos/builtin/packages/py-py2cairo/package.py
@@ -38,7 +38,7 @@ class PyPy2cairo(WafPackage):
     depends_on('python', type=('build', 'run'))
     depends_on('cairo@1.10.0:')
     depends_on('pixman')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
 
     # TODO: Add a 'test' deptype
     # depends_on('py-pytest', type='test')
diff --git a/var/spack/repos/builtin/packages/randrproto/package.py b/var/spack/repos/builtin/packages/randrproto/package.py
index 24f6aaed41..407686421d 100644
--- a/var/spack/repos/builtin/packages/randrproto/package.py
+++ b/var/spack/repos/builtin/packages/randrproto/package.py
@@ -37,5 +37,5 @@ class Randrproto(AutotoolsPackage):
 
     version('1.5.0', '863d6ee3e0b2708f75d968470ed31eb9')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/recordproto/package.py b/var/spack/repos/builtin/packages/recordproto/package.py
index dcbc0326e8..0f44b7408b 100644
--- a/var/spack/repos/builtin/packages/recordproto/package.py
+++ b/var/spack/repos/builtin/packages/recordproto/package.py
@@ -36,5 +36,5 @@ class Recordproto(AutotoolsPackage):
 
     version('1.14.2', '868235e1e150e68916d5a316ebc4ccc4')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/rendercheck/package.py b/var/spack/repos/builtin/packages/rendercheck/package.py
index 65fcc7a312..3bf4d7915e 100644
--- a/var/spack/repos/builtin/packages/rendercheck/package.py
+++ b/var/spack/repos/builtin/packages/rendercheck/package.py
@@ -38,5 +38,5 @@ class Rendercheck(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/renderproto/package.py b/var/spack/repos/builtin/packages/renderproto/package.py
index a6c91ab06b..350e9a3a3f 100644
--- a/var/spack/repos/builtin/packages/renderproto/package.py
+++ b/var/spack/repos/builtin/packages/renderproto/package.py
@@ -36,5 +36,5 @@ class Renderproto(AutotoolsPackage):
 
     version('0.11.1', '9b103359123e375bb7760f7dbae3dece')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/resourceproto/package.py b/var/spack/repos/builtin/packages/resourceproto/package.py
index 4e58ae7f00..fd1f13a999 100644
--- a/var/spack/repos/builtin/packages/resourceproto/package.py
+++ b/var/spack/repos/builtin/packages/resourceproto/package.py
@@ -36,5 +36,5 @@ class Resourceproto(AutotoolsPackage):
 
     version('1.2.0', '33091d5358ec32dd7562a1aa225a70aa')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/root/package.py b/var/spack/repos/builtin/packages/root/package.py
index a003d3d5e2..a19ed55a29 100644
--- a/var/spack/repos/builtin/packages/root/package.py
+++ b/var/spack/repos/builtin/packages/root/package.py
@@ -53,7 +53,7 @@ class Root(CMakePackage):
     variant('graphviz', default=False, description='Enable graphviz support')
 
     depends_on('cmake@3.4.3:', type='build')
-    depends_on('pkg-config',   type='build')
+    depends_on('pkgconfig',   type='build')
 
     depends_on('binutils')
     depends_on('zlib')
diff --git a/var/spack/repos/builtin/packages/rr/package.py b/var/spack/repos/builtin/packages/rr/package.py
index 245744a6fa..419e92f4bd 100644
--- a/var/spack/repos/builtin/packages/rr/package.py
+++ b/var/spack/repos/builtin/packages/rr/package.py
@@ -39,7 +39,7 @@ class Rr(CMakePackage):
     depends_on('zlib')
     # depends_on('capnproto', when='@4.6:')  # not yet in spack
     # depends_on('libcapnp')    # needed for future releases
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('py-pexpect', type='build')  # actually tests
 
     # rr needs architecture Nehalem and beyond, how can spack
diff --git a/var/spack/repos/builtin/packages/rstart/package.py b/var/spack/repos/builtin/packages/rstart/package.py
index 2a0cf59e81..01eda5d9a9 100644
--- a/var/spack/repos/builtin/packages/rstart/package.py
+++ b/var/spack/repos/builtin/packages/rstart/package.py
@@ -39,5 +39,5 @@ class Rstart(AutotoolsPackage):
     version('1.0.5', '32db3625cb5e841e17d6bc696f21edfb')
 
     depends_on('xproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/rtags/package.py b/var/spack/repos/builtin/packages/rtags/package.py
index 8e1a962209..b0a5b7487f 100644
--- a/var/spack/repos/builtin/packages/rtags/package.py
+++ b/var/spack/repos/builtin/packages/rtags/package.py
@@ -38,7 +38,7 @@ class Rtags(CMakePackage):
     depends_on("openssl")
     depends_on("lua@5.3:")
     depends_on("bash-completion")
-    depends_on("pkg-config", type='build')
+    depends_on("pkgconfig", type='build')
 
     patch("add_string_iterator_erase_compile_check.patch", when='@2.12')
 
diff --git a/var/spack/repos/builtin/packages/scripts/package.py b/var/spack/repos/builtin/packages/scripts/package.py
index ddd184b44f..579140fb65 100644
--- a/var/spack/repos/builtin/packages/scripts/package.py
+++ b/var/spack/repos/builtin/packages/scripts/package.py
@@ -35,5 +35,5 @@ class Scripts(AutotoolsPackage):
 
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/scrnsaverproto/package.py b/var/spack/repos/builtin/packages/scrnsaverproto/package.py
index 71fe86abbc..7411a8ae21 100644
--- a/var/spack/repos/builtin/packages/scrnsaverproto/package.py
+++ b/var/spack/repos/builtin/packages/scrnsaverproto/package.py
@@ -36,5 +36,5 @@ class Scrnsaverproto(AutotoolsPackage):
 
     version('1.2.2', '21704f1bad472d94abd22fea5704bb48')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/sessreg/package.py b/var/spack/repos/builtin/packages/sessreg/package.py
index af3f001e70..da6805b65c 100644
--- a/var/spack/repos/builtin/packages/sessreg/package.py
+++ b/var/spack/repos/builtin/packages/sessreg/package.py
@@ -36,7 +36,7 @@ class Sessreg(AutotoolsPackage):
     version('1.1.0', '5d7eb499043c7fdd8d53c5ba43660312')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def patch(self):
diff --git a/var/spack/repos/builtin/packages/setxkbmap/package.py b/var/spack/repos/builtin/packages/setxkbmap/package.py
index 5a8a5ea345..d64497c269 100644
--- a/var/spack/repos/builtin/packages/setxkbmap/package.py
+++ b/var/spack/repos/builtin/packages/setxkbmap/package.py
@@ -38,5 +38,5 @@ class Setxkbmap(AutotoolsPackage):
     depends_on('libxkbfile')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/shared-mime-info/package.py b/var/spack/repos/builtin/packages/shared-mime-info/package.py
index 80880eebc1..d6d9b520ab 100644
--- a/var/spack/repos/builtin/packages/shared-mime-info/package.py
+++ b/var/spack/repos/builtin/packages/shared-mime-info/package.py
@@ -40,7 +40,7 @@ class SharedMimeInfo(AutotoolsPackage):
     depends_on('libxml2')
     depends_on('intltool', type='build')
     depends_on('gettext', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     def setup_dependent_environment(self, spack_env, run_env, dependent_spec):
         spack_env.prepend_path("XDG_DATA_DIRS",
diff --git a/var/spack/repos/builtin/packages/showfont/package.py b/var/spack/repos/builtin/packages/showfont/package.py
index 769c77f076..f18c482925 100644
--- a/var/spack/repos/builtin/packages/showfont/package.py
+++ b/var/spack/repos/builtin/packages/showfont/package.py
@@ -37,5 +37,5 @@ class Showfont(AutotoolsPackage):
 
     depends_on('libfs')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/slurm/package.py b/var/spack/repos/builtin/packages/slurm/package.py
index ac0d6f2610..60879b1fe7 100644
--- a/var/spack/repos/builtin/packages/slurm/package.py
+++ b/var/spack/repos/builtin/packages/slurm/package.py
@@ -64,7 +64,7 @@ class Slurm(AutotoolsPackage):
     depends_on('lz4')
     depends_on('munge')
     depends_on('openssl')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('readline')
     depends_on('zlib')
 
diff --git a/var/spack/repos/builtin/packages/smproxy/package.py b/var/spack/repos/builtin/packages/smproxy/package.py
index 571b25d4b6..8a685c38b5 100644
--- a/var/spack/repos/builtin/packages/smproxy/package.py
+++ b/var/spack/repos/builtin/packages/smproxy/package.py
@@ -39,5 +39,5 @@ class Smproxy(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libxmu')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/the-silver-searcher/package.py b/var/spack/repos/builtin/packages/the-silver-searcher/package.py
index 31b269e286..0ca0a246ca 100644
--- a/var/spack/repos/builtin/packages/the-silver-searcher/package.py
+++ b/var/spack/repos/builtin/packages/the-silver-searcher/package.py
@@ -38,4 +38,4 @@ class TheSilverSearcher(AutotoolsPackage):
     depends_on('pcre')
     depends_on('xz')
     depends_on('zlib')
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/transset/package.py b/var/spack/repos/builtin/packages/transset/package.py
index 52f83c6edf..aff1273225 100644
--- a/var/spack/repos/builtin/packages/transset/package.py
+++ b/var/spack/repos/builtin/packages/transset/package.py
@@ -36,5 +36,5 @@ class Transset(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/twm/package.py b/var/spack/repos/builtin/packages/twm/package.py
index b467420c82..adaa2d863e 100644
--- a/var/spack/repos/builtin/packages/twm/package.py
+++ b/var/spack/repos/builtin/packages/twm/package.py
@@ -46,5 +46,5 @@ class Twm(AutotoolsPackage):
     depends_on('xproto@7.0.17:', type='build')
     depends_on('bison', type='build')
     depends_on('flex', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/videoproto/package.py b/var/spack/repos/builtin/packages/videoproto/package.py
index 21a40f98ff..f6fe4c1157 100644
--- a/var/spack/repos/builtin/packages/videoproto/package.py
+++ b/var/spack/repos/builtin/packages/videoproto/package.py
@@ -36,5 +36,5 @@ class Videoproto(AutotoolsPackage):
 
     version('2.3.3', 'd984100603ee2420072f27bb491f4b7d')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/viewres/package.py b/var/spack/repos/builtin/packages/viewres/package.py
index 0929dace52..c48b020841 100644
--- a/var/spack/repos/builtin/packages/viewres/package.py
+++ b/var/spack/repos/builtin/packages/viewres/package.py
@@ -38,5 +38,5 @@ class Viewres(AutotoolsPackage):
     depends_on('libxmu')
     depends_on('libxt')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/wget/package.py b/var/spack/repos/builtin/packages/wget/package.py
index 03e0c86cf3..70144b3ac1 100644
--- a/var/spack/repos/builtin/packages/wget/package.py
+++ b/var/spack/repos/builtin/packages/wget/package.py
@@ -60,7 +60,7 @@ class Wget(AutotoolsPackage):
     depends_on('pcre', when='+pcre')
 
     depends_on('perl@5.12.0:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     # TODO: Add a 'test' deptype
     # depends_on('valgrind', type='test')
diff --git a/var/spack/repos/builtin/packages/wx/package.py b/var/spack/repos/builtin/packages/wx/package.py
index fc42b5153f..082e608bfc 100644
--- a/var/spack/repos/builtin/packages/wx/package.py
+++ b/var/spack/repos/builtin/packages/wx/package.py
@@ -44,7 +44,7 @@ class Wx(AutotoolsPackage):
 
     version('develop', git='https://github.com/wxWidgets/wxWidgets.git', branch='master')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('gtkplus')
 
     @when('@:3.0.2')
diff --git a/var/spack/repos/builtin/packages/x11perf/package.py b/var/spack/repos/builtin/packages/x11perf/package.py
index b5a2e9344b..2dd9beff29 100644
--- a/var/spack/repos/builtin/packages/x11perf/package.py
+++ b/var/spack/repos/builtin/packages/x11perf/package.py
@@ -39,5 +39,5 @@ class X11perf(AutotoolsPackage):
     depends_on('libxft')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xauth/package.py b/var/spack/repos/builtin/packages/xauth/package.py
index ac02ba48b9..f0a28b552d 100644
--- a/var/spack/repos/builtin/packages/xauth/package.py
+++ b/var/spack/repos/builtin/packages/xauth/package.py
@@ -40,7 +40,7 @@ class Xauth(AutotoolsPackage):
     depends_on('libxmu')
 
     depends_on('xproto@7.0.17:')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # TODO: add package for cmdtest test dependency
diff --git a/var/spack/repos/builtin/packages/xbacklight/package.py b/var/spack/repos/builtin/packages/xbacklight/package.py
index 2f4057ee80..1e29a9151e 100644
--- a/var/spack/repos/builtin/packages/xbacklight/package.py
+++ b/var/spack/repos/builtin/packages/xbacklight/package.py
@@ -39,5 +39,5 @@ class Xbacklight(AutotoolsPackage):
     depends_on('libxcb')
     depends_on('xcb-util')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xbiff/package.py b/var/spack/repos/builtin/packages/xbiff/package.py
index 7d85e59fbf..257b2d6510 100644
--- a/var/spack/repos/builtin/packages/xbiff/package.py
+++ b/var/spack/repos/builtin/packages/xbiff/package.py
@@ -41,5 +41,5 @@ class Xbiff(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xbitmaps', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xbitmaps/package.py b/var/spack/repos/builtin/packages/xbitmaps/package.py
index 6282ce7041..30a7c787bc 100644
--- a/var/spack/repos/builtin/packages/xbitmaps/package.py
+++ b/var/spack/repos/builtin/packages/xbitmaps/package.py
@@ -34,5 +34,5 @@ class Xbitmaps(AutotoolsPackage):
 
     version('1.1.1', '288bbe310db67280a9e2e5ebc5602595')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcalc/package.py b/var/spack/repos/builtin/packages/xcalc/package.py
index 5218ecac99..fd29564876 100644
--- a/var/spack/repos/builtin/packages/xcalc/package.py
+++ b/var/spack/repos/builtin/packages/xcalc/package.py
@@ -39,5 +39,5 @@ class Xcalc(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-demo/package.py b/var/spack/repos/builtin/packages/xcb-demo/package.py
index 7a2c2f65f4..921ee90711 100644
--- a/var/spack/repos/builtin/packages/xcb-demo/package.py
+++ b/var/spack/repos/builtin/packages/xcb-demo/package.py
@@ -38,7 +38,7 @@ class XcbDemo(AutotoolsPackage):
     depends_on('xcb-util-image')
     depends_on('xcb-util-wm')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
 
     # FIXME: crashes with the following error message
     # X11/XCB/xcb.h: No such file or directory
diff --git a/var/spack/repos/builtin/packages/xcb-util-cursor/package.py b/var/spack/repos/builtin/packages/xcb-util-cursor/package.py
index 64faa37207..33e616ccd8 100644
--- a/var/spack/repos/builtin/packages/xcb-util-cursor/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-cursor/package.py
@@ -42,4 +42,4 @@ class XcbUtilCursor(AutotoolsPackage):
     depends_on('xcb-util-renderutil')
     depends_on('xcb-util-image')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util-errors/package.py b/var/spack/repos/builtin/packages/xcb-util-errors/package.py
index 07aa424ddc..d38272f317 100644
--- a/var/spack/repos/builtin/packages/xcb-util-errors/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-errors/package.py
@@ -41,4 +41,4 @@ class XcbUtilErrors(AutotoolsPackage):
     depends_on('libxcb@1.4:')
 
     depends_on('xcb-proto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util-image/package.py b/var/spack/repos/builtin/packages/xcb-util-image/package.py
index a9f2f2263a..2f051f67cd 100644
--- a/var/spack/repos/builtin/packages/xcb-util-image/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-image/package.py
@@ -42,4 +42,4 @@ class XcbUtilImage(AutotoolsPackage):
     depends_on('xcb-util')
 
     depends_on('xproto@7.0.8:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util-keysyms/package.py b/var/spack/repos/builtin/packages/xcb-util-keysyms/package.py
index 3901624e9a..ae6f7afeb3 100644
--- a/var/spack/repos/builtin/packages/xcb-util-keysyms/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-keysyms/package.py
@@ -41,4 +41,4 @@ class XcbUtilKeysyms(AutotoolsPackage):
     depends_on('libxcb@1.4:')
 
     depends_on('xproto@7.0.8:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util-renderutil/package.py b/var/spack/repos/builtin/packages/xcb-util-renderutil/package.py
index e9a325e83c..dd8760d98f 100644
--- a/var/spack/repos/builtin/packages/xcb-util-renderutil/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-renderutil/package.py
@@ -40,4 +40,4 @@ class XcbUtilRenderutil(AutotoolsPackage):
 
     depends_on('libxcb@1.4:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util-wm/package.py b/var/spack/repos/builtin/packages/xcb-util-wm/package.py
index 5d9a5e3932..bc37618fef 100644
--- a/var/spack/repos/builtin/packages/xcb-util-wm/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util-wm/package.py
@@ -40,4 +40,4 @@ class XcbUtilWm(AutotoolsPackage):
 
     depends_on('libxcb@1.4:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xcb-util/package.py b/var/spack/repos/builtin/packages/xcb-util/package.py
index c8ac0d40ab..50d8fcc2d9 100644
--- a/var/spack/repos/builtin/packages/xcb-util/package.py
+++ b/var/spack/repos/builtin/packages/xcb-util/package.py
@@ -40,4 +40,4 @@ class XcbUtil(AutotoolsPackage):
 
     depends_on('libxcb@1.4:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xclipboard/package.py b/var/spack/repos/builtin/packages/xclipboard/package.py
index bad81a9a96..8ce7684640 100644
--- a/var/spack/repos/builtin/packages/xclipboard/package.py
+++ b/var/spack/repos/builtin/packages/xclipboard/package.py
@@ -43,5 +43,5 @@ class Xclipboard(AutotoolsPackage):
     depends_on('libxkbfile')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xclock/package.py b/var/spack/repos/builtin/packages/xclock/package.py
index 47614e50e1..c9ee8d71c4 100644
--- a/var/spack/repos/builtin/packages/xclock/package.py
+++ b/var/spack/repos/builtin/packages/xclock/package.py
@@ -44,5 +44,5 @@ class Xclock(AutotoolsPackage):
     depends_on('libxt')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcmiscproto/package.py b/var/spack/repos/builtin/packages/xcmiscproto/package.py
index 92c1b886a5..f18e8175de 100644
--- a/var/spack/repos/builtin/packages/xcmiscproto/package.py
+++ b/var/spack/repos/builtin/packages/xcmiscproto/package.py
@@ -36,5 +36,5 @@ class Xcmiscproto(AutotoolsPackage):
 
     version('1.2.2', 'ded6cd23fb2800df93ebf2b3f3b01119')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcmsdb/package.py b/var/spack/repos/builtin/packages/xcmsdb/package.py
index b59a254262..623f8a1241 100644
--- a/var/spack/repos/builtin/packages/xcmsdb/package.py
+++ b/var/spack/repos/builtin/packages/xcmsdb/package.py
@@ -38,5 +38,5 @@ class Xcmsdb(AutotoolsPackage):
 
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcompmgr/package.py b/var/spack/repos/builtin/packages/xcompmgr/package.py
index dc8aa398b1..9de6cb38d3 100644
--- a/var/spack/repos/builtin/packages/xcompmgr/package.py
+++ b/var/spack/repos/builtin/packages/xcompmgr/package.py
@@ -41,5 +41,5 @@ class Xcompmgr(AutotoolsPackage):
     depends_on('libxrender')
     depends_on('libxext')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xconsole/package.py b/var/spack/repos/builtin/packages/xconsole/package.py
index 2c130091d3..f04a10fb8d 100644
--- a/var/spack/repos/builtin/packages/xconsole/package.py
+++ b/var/spack/repos/builtin/packages/xconsole/package.py
@@ -40,5 +40,5 @@ class Xconsole(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xcursor-themes/package.py b/var/spack/repos/builtin/packages/xcursor-themes/package.py
index 112d63c274..abda96d3d4 100644
--- a/var/spack/repos/builtin/packages/xcursor-themes/package.py
+++ b/var/spack/repos/builtin/packages/xcursor-themes/package.py
@@ -38,7 +38,7 @@ class XcursorThemes(Package):
     depends_on('libxcursor')
 
     depends_on('xcursorgen', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/xcursorgen/package.py b/var/spack/repos/builtin/packages/xcursorgen/package.py
index c2b808b0af..de34fbcf33 100644
--- a/var/spack/repos/builtin/packages/xcursorgen/package.py
+++ b/var/spack/repos/builtin/packages/xcursorgen/package.py
@@ -37,5 +37,5 @@ class Xcursorgen(AutotoolsPackage):
     depends_on('libxcursor')
     depends_on('libpng@1.2.0:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xdbedizzy/package.py b/var/spack/repos/builtin/packages/xdbedizzy/package.py
index 9e21e54ca6..7afa4dc7ba 100644
--- a/var/spack/repos/builtin/packages/xdbedizzy/package.py
+++ b/var/spack/repos/builtin/packages/xdbedizzy/package.py
@@ -37,5 +37,5 @@ class Xdbedizzy(AutotoolsPackage):
     depends_on('libx11')
     depends_on('libxext')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xditview/package.py b/var/spack/repos/builtin/packages/xditview/package.py
index 5111de58af..d11f01e3eb 100644
--- a/var/spack/repos/builtin/packages/xditview/package.py
+++ b/var/spack/repos/builtin/packages/xditview/package.py
@@ -38,5 +38,5 @@ class Xditview(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xdm/package.py b/var/spack/repos/builtin/packages/xdm/package.py
index 8f1b544f6d..4804e47288 100644
--- a/var/spack/repos/builtin/packages/xdm/package.py
+++ b/var/spack/repos/builtin/packages/xdm/package.py
@@ -44,5 +44,5 @@ class Xdm(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libxext')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xdpyinfo/package.py b/var/spack/repos/builtin/packages/xdpyinfo/package.py
index ab5935b474..969d1b9762 100644
--- a/var/spack/repos/builtin/packages/xdpyinfo/package.py
+++ b/var/spack/repos/builtin/packages/xdpyinfo/package.py
@@ -47,5 +47,5 @@ class Xdpyinfo(AutotoolsPackage):
     depends_on('recordproto', type='build')
     depends_on('inputproto', type='build')
     depends_on('fixesproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xdriinfo/package.py b/var/spack/repos/builtin/packages/xdriinfo/package.py
index 86645072c0..50245b444a 100644
--- a/var/spack/repos/builtin/packages/xdriinfo/package.py
+++ b/var/spack/repos/builtin/packages/xdriinfo/package.py
@@ -42,5 +42,5 @@ class Xdriinfo(AutotoolsPackage):
     depends_on('pcre')
 
     depends_on('glproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xedit/package.py b/var/spack/repos/builtin/packages/xedit/package.py
index 752fbf61d5..77d7609313 100644
--- a/var/spack/repos/builtin/packages/xedit/package.py
+++ b/var/spack/repos/builtin/packages/xedit/package.py
@@ -38,5 +38,5 @@ class Xedit(AutotoolsPackage):
     depends_on('libxt@1.0:')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xev/package.py b/var/spack/repos/builtin/packages/xev/package.py
index fbccb0e103..06bac3a08a 100644
--- a/var/spack/repos/builtin/packages/xev/package.py
+++ b/var/spack/repos/builtin/packages/xev/package.py
@@ -43,5 +43,5 @@ class Xev(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xextproto/package.py b/var/spack/repos/builtin/packages/xextproto/package.py
index d02c1935c2..4c6b03390c 100644
--- a/var/spack/repos/builtin/packages/xextproto/package.py
+++ b/var/spack/repos/builtin/packages/xextproto/package.py
@@ -33,7 +33,7 @@ class Xextproto(AutotoolsPackage):
 
     version('7.3.0', '37b700baa8c8ea7964702d948dd13821')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     parallel = False
diff --git a/var/spack/repos/builtin/packages/xeyes/package.py b/var/spack/repos/builtin/packages/xeyes/package.py
index 232f46212b..dc287c7e74 100644
--- a/var/spack/repos/builtin/packages/xeyes/package.py
+++ b/var/spack/repos/builtin/packages/xeyes/package.py
@@ -39,5 +39,5 @@ class Xeyes(AutotoolsPackage):
     depends_on('libxmu')
     depends_on('libxrender@0.4:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xf86dga/package.py b/var/spack/repos/builtin/packages/xf86dga/package.py
index 3768fced15..882ac79e70 100644
--- a/var/spack/repos/builtin/packages/xf86dga/package.py
+++ b/var/spack/repos/builtin/packages/xf86dga/package.py
@@ -36,5 +36,5 @@ class Xf86dga(AutotoolsPackage):
     depends_on('libx11')
     depends_on('libxxf86dga@1.1:')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xf86driproto/package.py b/var/spack/repos/builtin/packages/xf86driproto/package.py
index 4877440649..b71d709bd5 100644
--- a/var/spack/repos/builtin/packages/xf86driproto/package.py
+++ b/var/spack/repos/builtin/packages/xf86driproto/package.py
@@ -37,5 +37,5 @@ class Xf86driproto(AutotoolsPackage):
 
     version('2.1.1', '3ba16a48d8d9f9f746f9bd281ba8fb3f')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xf86vidmodeproto/package.py b/var/spack/repos/builtin/packages/xf86vidmodeproto/package.py
index f8ce028474..1f6a4f36c9 100644
--- a/var/spack/repos/builtin/packages/xf86vidmodeproto/package.py
+++ b/var/spack/repos/builtin/packages/xf86vidmodeproto/package.py
@@ -36,5 +36,5 @@ class Xf86vidmodeproto(AutotoolsPackage):
 
     version('2.3.1', '99016d0fe355bae0bb23ce00fb4d4a2c')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfd/package.py b/var/spack/repos/builtin/packages/xfd/package.py
index 024f8ce141..3ba1d3313a 100644
--- a/var/spack/repos/builtin/packages/xfd/package.py
+++ b/var/spack/repos/builtin/packages/xfd/package.py
@@ -42,5 +42,5 @@ class Xfd(AutotoolsPackage):
     depends_on('libxt')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfindproxy/package.py b/var/spack/repos/builtin/packages/xfindproxy/package.py
index fc12753133..e0d9ffbc4c 100644
--- a/var/spack/repos/builtin/packages/xfindproxy/package.py
+++ b/var/spack/repos/builtin/packages/xfindproxy/package.py
@@ -43,5 +43,5 @@ class Xfindproxy(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('xproxymanagementprotocol', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfontsel/package.py b/var/spack/repos/builtin/packages/xfontsel/package.py
index 2a615216d5..c575b81b00 100644
--- a/var/spack/repos/builtin/packages/xfontsel/package.py
+++ b/var/spack/repos/builtin/packages/xfontsel/package.py
@@ -40,5 +40,5 @@ class Xfontsel(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfs/package.py b/var/spack/repos/builtin/packages/xfs/package.py
index 6846c320e2..8204d58e9f 100644
--- a/var/spack/repos/builtin/packages/xfs/package.py
+++ b/var/spack/repos/builtin/packages/xfs/package.py
@@ -39,5 +39,5 @@ class Xfs(AutotoolsPackage):
     depends_on('xproto@7.0.17:', type='build')
     depends_on('fontsproto', type='build')
     depends_on('xtrans', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfsinfo/package.py b/var/spack/repos/builtin/packages/xfsinfo/package.py
index 8f8ec13247..54fec32ba8 100644
--- a/var/spack/repos/builtin/packages/xfsinfo/package.py
+++ b/var/spack/repos/builtin/packages/xfsinfo/package.py
@@ -40,5 +40,5 @@ class Xfsinfo(AutotoolsPackage):
     depends_on('libfs')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xfwp/package.py b/var/spack/repos/builtin/packages/xfwp/package.py
index b0c8fa9158..1d9cb0d1b4 100644
--- a/var/spack/repos/builtin/packages/xfwp/package.py
+++ b/var/spack/repos/builtin/packages/xfwp/package.py
@@ -37,7 +37,7 @@ class Xfwp(AutotoolsPackage):
 
     depends_on('xproto', type='build')
     depends_on('xproxymanagementprotocol', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # FIXME: fails with the error message:
diff --git a/var/spack/repos/builtin/packages/xgamma/package.py b/var/spack/repos/builtin/packages/xgamma/package.py
index b417a47c1c..1d114e170b 100644
--- a/var/spack/repos/builtin/packages/xgamma/package.py
+++ b/var/spack/repos/builtin/packages/xgamma/package.py
@@ -38,5 +38,5 @@ class Xgamma(AutotoolsPackage):
     depends_on('libxxf86vm')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xgc/package.py b/var/spack/repos/builtin/packages/xgc/package.py
index 0b507332da..24b9143da8 100644
--- a/var/spack/repos/builtin/packages/xgc/package.py
+++ b/var/spack/repos/builtin/packages/xgc/package.py
@@ -39,5 +39,5 @@ class Xgc(AutotoolsPackage):
 
     depends_on('flex', type='build')
     depends_on('bison', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xhost/package.py b/var/spack/repos/builtin/packages/xhost/package.py
index 072a5a29b1..ff7f72fb4c 100644
--- a/var/spack/repos/builtin/packages/xhost/package.py
+++ b/var/spack/repos/builtin/packages/xhost/package.py
@@ -39,5 +39,5 @@ class Xhost(AutotoolsPackage):
     depends_on('libxau')
 
     depends_on('xproto@7.0.22:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xineramaproto/package.py b/var/spack/repos/builtin/packages/xineramaproto/package.py
index b05e26254b..027f2b00de 100644
--- a/var/spack/repos/builtin/packages/xineramaproto/package.py
+++ b/var/spack/repos/builtin/packages/xineramaproto/package.py
@@ -36,5 +36,5 @@ class Xineramaproto(AutotoolsPackage):
 
     version('1.2.1', 'e0e148b11739e144a546b8a051b17dde')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xinit/package.py b/var/spack/repos/builtin/packages/xinit/package.py
index 03487e44a2..b3586a6367 100644
--- a/var/spack/repos/builtin/packages/xinit/package.py
+++ b/var/spack/repos/builtin/packages/xinit/package.py
@@ -38,5 +38,5 @@ class Xinit(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xinput/package.py b/var/spack/repos/builtin/packages/xinput/package.py
index 2a441d545d..2438750be3 100644
--- a/var/spack/repos/builtin/packages/xinput/package.py
+++ b/var/spack/repos/builtin/packages/xinput/package.py
@@ -43,5 +43,5 @@ class Xinput(AutotoolsPackage):
     depends_on('fixesproto', type='build')
     depends_on('randrproto', type='build')
     depends_on('xineramaproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xkbcomp/package.py b/var/spack/repos/builtin/packages/xkbcomp/package.py
index 2385bb75e9..119b2cc740 100644
--- a/var/spack/repos/builtin/packages/xkbcomp/package.py
+++ b/var/spack/repos/builtin/packages/xkbcomp/package.py
@@ -43,5 +43,5 @@ class Xkbcomp(AutotoolsPackage):
 
     depends_on('xproto@7.0.17:', type='build')
     depends_on('bison', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xkbevd/package.py b/var/spack/repos/builtin/packages/xkbevd/package.py
index 8ca91494b1..3d0339d2b1 100644
--- a/var/spack/repos/builtin/packages/xkbevd/package.py
+++ b/var/spack/repos/builtin/packages/xkbevd/package.py
@@ -37,5 +37,5 @@ class Xkbevd(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('bison', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xkbprint/package.py b/var/spack/repos/builtin/packages/xkbprint/package.py
index 8d5205843f..5f87e6b32a 100644
--- a/var/spack/repos/builtin/packages/xkbprint/package.py
+++ b/var/spack/repos/builtin/packages/xkbprint/package.py
@@ -38,5 +38,5 @@ class Xkbprint(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xkbutils/package.py b/var/spack/repos/builtin/packages/xkbutils/package.py
index c4f604407a..f129c7992b 100644
--- a/var/spack/repos/builtin/packages/xkbutils/package.py
+++ b/var/spack/repos/builtin/packages/xkbutils/package.py
@@ -40,5 +40,5 @@ class Xkbutils(AutotoolsPackage):
 
     depends_on('xproto@7.0.17:', type='build')
     depends_on('inputproto', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xkeyboard-config/package.py b/var/spack/repos/builtin/packages/xkeyboard-config/package.py
index 5995a7eae7..b324cee133 100644
--- a/var/spack/repos/builtin/packages/xkeyboard-config/package.py
+++ b/var/spack/repos/builtin/packages/xkeyboard-config/package.py
@@ -38,7 +38,7 @@ class XkeyboardConfig(AutotoolsPackage):
     depends_on('libx11@1.4.3:')
 
     depends_on('libxslt', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('intltool@0.30:', type='build')
     depends_on('xproto@7.0.20:', type='build')
 
diff --git a/var/spack/repos/builtin/packages/xkill/package.py b/var/spack/repos/builtin/packages/xkill/package.py
index 37ee488071..5b25a1c0e0 100644
--- a/var/spack/repos/builtin/packages/xkill/package.py
+++ b/var/spack/repos/builtin/packages/xkill/package.py
@@ -39,5 +39,5 @@ class Xkill(AutotoolsPackage):
     depends_on('libxmu')
 
     depends_on('xproto@7.0.22:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xload/package.py b/var/spack/repos/builtin/packages/xload/package.py
index cda2ab21a7..e4bb88b7f2 100644
--- a/var/spack/repos/builtin/packages/xload/package.py
+++ b/var/spack/repos/builtin/packages/xload/package.py
@@ -40,5 +40,5 @@ class Xload(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xlogo/package.py b/var/spack/repos/builtin/packages/xlogo/package.py
index aca6a47df8..66f55481e5 100644
--- a/var/spack/repos/builtin/packages/xlogo/package.py
+++ b/var/spack/repos/builtin/packages/xlogo/package.py
@@ -43,5 +43,5 @@ class Xlogo(AutotoolsPackage):
     depends_on('libxrender')
     depends_on('libxt')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xlsatoms/package.py b/var/spack/repos/builtin/packages/xlsatoms/package.py
index b85fac8660..1856a27890 100644
--- a/var/spack/repos/builtin/packages/xlsatoms/package.py
+++ b/var/spack/repos/builtin/packages/xlsatoms/package.py
@@ -36,5 +36,5 @@ class Xlsatoms(AutotoolsPackage):
     depends_on('libxcb', when='@1.1:')
     depends_on('libx11', when='@:1.0')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xlsclients/package.py b/var/spack/repos/builtin/packages/xlsclients/package.py
index 6deb2c88e8..7330238af7 100644
--- a/var/spack/repos/builtin/packages/xlsclients/package.py
+++ b/var/spack/repos/builtin/packages/xlsclients/package.py
@@ -37,5 +37,5 @@ class Xlsclients(AutotoolsPackage):
     depends_on('libxcb@1.6:', when='@1.1:')
     depends_on('libx11', when='@:1.0')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xlsfonts/package.py b/var/spack/repos/builtin/packages/xlsfonts/package.py
index 15761e2d9f..15a0a5a620 100644
--- a/var/spack/repos/builtin/packages/xlsfonts/package.py
+++ b/var/spack/repos/builtin/packages/xlsfonts/package.py
@@ -37,5 +37,5 @@ class Xlsfonts(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xmag/package.py b/var/spack/repos/builtin/packages/xmag/package.py
index 5a8ae6e961..1ca15ded60 100644
--- a/var/spack/repos/builtin/packages/xmag/package.py
+++ b/var/spack/repos/builtin/packages/xmag/package.py
@@ -38,5 +38,5 @@ class Xmag(AutotoolsPackage):
     depends_on('libxt')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xman/package.py b/var/spack/repos/builtin/packages/xman/package.py
index df11504f69..f24d9f0eb0 100644
--- a/var/spack/repos/builtin/packages/xman/package.py
+++ b/var/spack/repos/builtin/packages/xman/package.py
@@ -38,5 +38,5 @@ class Xman(AutotoolsPackage):
     depends_on('libxt')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xmessage/package.py b/var/spack/repos/builtin/packages/xmessage/package.py
index dee5d86e21..54becc288f 100644
--- a/var/spack/repos/builtin/packages/xmessage/package.py
+++ b/var/spack/repos/builtin/packages/xmessage/package.py
@@ -38,5 +38,5 @@ class Xmessage(AutotoolsPackage):
     depends_on('libxaw')
     depends_on('libxt')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xmh/package.py b/var/spack/repos/builtin/packages/xmh/package.py
index 65873360c2..7924db060c 100644
--- a/var/spack/repos/builtin/packages/xmh/package.py
+++ b/var/spack/repos/builtin/packages/xmh/package.py
@@ -41,5 +41,5 @@ class Xmh(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xbitmaps@1.1.0:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xmodmap/package.py b/var/spack/repos/builtin/packages/xmodmap/package.py
index 62582df6f2..66608fc353 100644
--- a/var/spack/repos/builtin/packages/xmodmap/package.py
+++ b/var/spack/repos/builtin/packages/xmodmap/package.py
@@ -40,5 +40,5 @@ class Xmodmap(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xmore/package.py b/var/spack/repos/builtin/packages/xmore/package.py
index 0b76828999..56aaa83929 100644
--- a/var/spack/repos/builtin/packages/xmore/package.py
+++ b/var/spack/repos/builtin/packages/xmore/package.py
@@ -36,5 +36,5 @@ class Xmore(AutotoolsPackage):
     depends_on('libxaw')
     depends_on('libxt')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xorg-cf-files/package.py b/var/spack/repos/builtin/packages/xorg-cf-files/package.py
index edeba12f0e..3c0abedce5 100644
--- a/var/spack/repos/builtin/packages/xorg-cf-files/package.py
+++ b/var/spack/repos/builtin/packages/xorg-cf-files/package.py
@@ -36,4 +36,4 @@ class XorgCfFiles(AutotoolsPackage):
 
     version('1.0.6', 'c0ce98377c70d95fb48e1bd856109bf8')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xorg-docs/package.py b/var/spack/repos/builtin/packages/xorg-docs/package.py
index bb67538f0a..614d39da3d 100644
--- a/var/spack/repos/builtin/packages/xorg-docs/package.py
+++ b/var/spack/repos/builtin/packages/xorg-docs/package.py
@@ -36,7 +36,7 @@ class XorgDocs(AutotoolsPackage):
 
     version('1.7.1', 'ca689ccbf8ebc362afbe5cc5792a4abd')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
     depends_on('xorg-sgml-doctools@1.8:', type='build')
     depends_on('xmlto', type='build')
diff --git a/var/spack/repos/builtin/packages/xorg-gtest/package.py b/var/spack/repos/builtin/packages/xorg-gtest/package.py
index 594ba2a3bd..914cd54e46 100644
--- a/var/spack/repos/builtin/packages/xorg-gtest/package.py
+++ b/var/spack/repos/builtin/packages/xorg-gtest/package.py
@@ -38,7 +38,7 @@ class XorgGtest(AutotoolsPackage):
     depends_on('libxi')
     depends_on('xorg-server')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # TODO: may be missing evemu package?
diff --git a/var/spack/repos/builtin/packages/xorg-server/package.py b/var/spack/repos/builtin/packages/xorg-server/package.py
index 6b616bfe43..0b3994943d 100644
--- a/var/spack/repos/builtin/packages/xorg-server/package.py
+++ b/var/spack/repos/builtin/packages/xorg-server/package.py
@@ -47,7 +47,7 @@ class XorgServer(AutotoolsPackage):
 
     depends_on('flex', type='build')
     depends_on('bison', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     # TODO: add missing dependencies
diff --git a/var/spack/repos/builtin/packages/xorg-sgml-doctools/package.py b/var/spack/repos/builtin/packages/xorg-sgml-doctools/package.py
index 1adc06dc41..86e462ab42 100644
--- a/var/spack/repos/builtin/packages/xorg-sgml-doctools/package.py
+++ b/var/spack/repos/builtin/packages/xorg-sgml-doctools/package.py
@@ -35,5 +35,5 @@ class XorgSgmlDoctools(AutotoolsPackage):
 
     version('1.11', '51cf4c6b476e2b98a068fea6975b9b21')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xphelloworld/package.py b/var/spack/repos/builtin/packages/xphelloworld/package.py
index 10f9be36df..0697553a68 100644
--- a/var/spack/repos/builtin/packages/xphelloworld/package.py
+++ b/var/spack/repos/builtin/packages/xphelloworld/package.py
@@ -44,5 +44,5 @@ class Xphelloworld(AutotoolsPackage):
     # It looks like xprint support was removed from libxaw at some point.
     # But even the oldest version of libxaw doesn't build libxaw8.
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xplsprinters/package.py b/var/spack/repos/builtin/packages/xplsprinters/package.py
index 0757de82ba..581a875c8b 100644
--- a/var/spack/repos/builtin/packages/xplsprinters/package.py
+++ b/var/spack/repos/builtin/packages/xplsprinters/package.py
@@ -37,5 +37,5 @@ class Xplsprinters(AutotoolsPackage):
     depends_on('libxprintutil')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xpr/package.py b/var/spack/repos/builtin/packages/xpr/package.py
index 5d246e957a..e826713961 100644
--- a/var/spack/repos/builtin/packages/xpr/package.py
+++ b/var/spack/repos/builtin/packages/xpr/package.py
@@ -38,5 +38,5 @@ class Xpr(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xprehashprinterlist/package.py b/var/spack/repos/builtin/packages/xprehashprinterlist/package.py
index 65701b180f..94414a48de 100644
--- a/var/spack/repos/builtin/packages/xprehashprinterlist/package.py
+++ b/var/spack/repos/builtin/packages/xprehashprinterlist/package.py
@@ -36,5 +36,5 @@ class Xprehashprinterlist(AutotoolsPackage):
     depends_on('libxp')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xprop/package.py b/var/spack/repos/builtin/packages/xprop/package.py
index 359ed6d6f1..1bf5331964 100644
--- a/var/spack/repos/builtin/packages/xprop/package.py
+++ b/var/spack/repos/builtin/packages/xprop/package.py
@@ -37,5 +37,5 @@ class Xprop(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xproto/package.py b/var/spack/repos/builtin/packages/xproto/package.py
index 2396e2966f..5414b11c56 100644
--- a/var/spack/repos/builtin/packages/xproto/package.py
+++ b/var/spack/repos/builtin/packages/xproto/package.py
@@ -41,7 +41,7 @@ class Xproto(AutotoolsPackage):
     version('7.0.31', '04b925bf9e472c80f9212615cd684f1e')
     version('7.0.29', '16a78dd2c5ad73011105c96235f6a0af')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
 
     def install(self, spec, prefix):
diff --git a/var/spack/repos/builtin/packages/xrandr/package.py b/var/spack/repos/builtin/packages/xrandr/package.py
index 4aeb34d020..cb59ad7355 100644
--- a/var/spack/repos/builtin/packages/xrandr/package.py
+++ b/var/spack/repos/builtin/packages/xrandr/package.py
@@ -39,5 +39,5 @@ class Xrandr(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xrdb/package.py b/var/spack/repos/builtin/packages/xrdb/package.py
index 075e04e9dc..c2de7822d2 100644
--- a/var/spack/repos/builtin/packages/xrdb/package.py
+++ b/var/spack/repos/builtin/packages/xrdb/package.py
@@ -37,5 +37,5 @@ class Xrdb(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xrefresh/package.py b/var/spack/repos/builtin/packages/xrefresh/package.py
index 76a094779e..c1e6d8e96a 100644
--- a/var/spack/repos/builtin/packages/xrefresh/package.py
+++ b/var/spack/repos/builtin/packages/xrefresh/package.py
@@ -36,5 +36,5 @@ class Xrefresh(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xrx/package.py b/var/spack/repos/builtin/packages/xrx/package.py
index fba6a88df1..2aae39beac 100644
--- a/var/spack/repos/builtin/packages/xrx/package.py
+++ b/var/spack/repos/builtin/packages/xrx/package.py
@@ -47,5 +47,5 @@ class Xrx(AutotoolsPackage):
 
     depends_on('xtrans', type='build')
     depends_on('xproxymanagementprotocol', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xscope/package.py b/var/spack/repos/builtin/packages/xscope/package.py
index c851fcf5f3..d00f970185 100644
--- a/var/spack/repos/builtin/packages/xscope/package.py
+++ b/var/spack/repos/builtin/packages/xscope/package.py
@@ -35,5 +35,5 @@ class Xscope(AutotoolsPackage):
 
     depends_on('xproto@7.0.17:', type='build')
     depends_on('xtrans', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xset/package.py b/var/spack/repos/builtin/packages/xset/package.py
index 8488ded70c..8a349afb00 100644
--- a/var/spack/repos/builtin/packages/xset/package.py
+++ b/var/spack/repos/builtin/packages/xset/package.py
@@ -37,5 +37,5 @@ class Xset(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xsetmode/package.py b/var/spack/repos/builtin/packages/xsetmode/package.py
index e4d9b1a6a0..57cc644a7c 100644
--- a/var/spack/repos/builtin/packages/xsetmode/package.py
+++ b/var/spack/repos/builtin/packages/xsetmode/package.py
@@ -36,5 +36,5 @@ class Xsetmode(AutotoolsPackage):
     depends_on('libxi')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xsetpointer/package.py b/var/spack/repos/builtin/packages/xsetpointer/package.py
index 296dae801b..672a172c86 100644
--- a/var/spack/repos/builtin/packages/xsetpointer/package.py
+++ b/var/spack/repos/builtin/packages/xsetpointer/package.py
@@ -37,5 +37,5 @@ class Xsetpointer(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('inputproto@1.4:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xsetroot/package.py b/var/spack/repos/builtin/packages/xsetroot/package.py
index 1468aa7e2e..428294dbce 100644
--- a/var/spack/repos/builtin/packages/xsetroot/package.py
+++ b/var/spack/repos/builtin/packages/xsetroot/package.py
@@ -39,5 +39,5 @@ class Xsetroot(AutotoolsPackage):
 
     depends_on('xbitmaps', type='build')
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xsm/package.py b/var/spack/repos/builtin/packages/xsm/package.py
index 0bbd3ec805..c35213ee7e 100644
--- a/var/spack/repos/builtin/packages/xsm/package.py
+++ b/var/spack/repos/builtin/packages/xsm/package.py
@@ -39,5 +39,5 @@ class Xsm(AutotoolsPackage):
     depends_on('libsm')
     depends_on('libxaw')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xstdcmap/package.py b/var/spack/repos/builtin/packages/xstdcmap/package.py
index 9b8d4a1641..d4521dbc56 100644
--- a/var/spack/repos/builtin/packages/xstdcmap/package.py
+++ b/var/spack/repos/builtin/packages/xstdcmap/package.py
@@ -40,5 +40,5 @@ class Xstdcmap(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xterm/package.py b/var/spack/repos/builtin/packages/xterm/package.py
index 8c24931d7a..320f3490c8 100644
--- a/var/spack/repos/builtin/packages/xterm/package.py
+++ b/var/spack/repos/builtin/packages/xterm/package.py
@@ -52,4 +52,4 @@ class Xterm(AutotoolsPackage):
     depends_on('libxau')
     depends_on('bzip2')
 
-    depends_on('pkg-config', type='build')
+    depends_on('pkgconfig', type='build')
diff --git a/var/spack/repos/builtin/packages/xtrans/package.py b/var/spack/repos/builtin/packages/xtrans/package.py
index 186e3587e6..08739749f8 100644
--- a/var/spack/repos/builtin/packages/xtrans/package.py
+++ b/var/spack/repos/builtin/packages/xtrans/package.py
@@ -36,5 +36,5 @@ class Xtrans(AutotoolsPackage):
 
     version('1.3.5', '6e4eac1b7c6591da0753052e1eccfb58')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xtrap/package.py b/var/spack/repos/builtin/packages/xtrap/package.py
index ef297e9e6d..3bbeef6d70 100644
--- a/var/spack/repos/builtin/packages/xtrap/package.py
+++ b/var/spack/repos/builtin/packages/xtrap/package.py
@@ -36,5 +36,5 @@ class Xtrap(AutotoolsPackage):
     depends_on('libx11')
     depends_on('libxtrap')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xvidtune/package.py b/var/spack/repos/builtin/packages/xvidtune/package.py
index 573c027627..b8075b8f9f 100644
--- a/var/spack/repos/builtin/packages/xvidtune/package.py
+++ b/var/spack/repos/builtin/packages/xvidtune/package.py
@@ -40,5 +40,5 @@ class Xvidtune(AutotoolsPackage):
     depends_on('libxmu')
     depends_on('libx11')
 
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xvinfo/package.py b/var/spack/repos/builtin/packages/xvinfo/package.py
index 358573dcbe..77637f43bb 100644
--- a/var/spack/repos/builtin/packages/xvinfo/package.py
+++ b/var/spack/repos/builtin/packages/xvinfo/package.py
@@ -38,5 +38,5 @@ class Xvinfo(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.25:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xwd/package.py b/var/spack/repos/builtin/packages/xwd/package.py
index 0b992365be..47abe79692 100644
--- a/var/spack/repos/builtin/packages/xwd/package.py
+++ b/var/spack/repos/builtin/packages/xwd/package.py
@@ -37,5 +37,5 @@ class Xwd(AutotoolsPackage):
     depends_on('libxkbfile')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xwininfo/package.py b/var/spack/repos/builtin/packages/xwininfo/package.py
index bba7088166..3022b8539d 100644
--- a/var/spack/repos/builtin/packages/xwininfo/package.py
+++ b/var/spack/repos/builtin/packages/xwininfo/package.py
@@ -38,5 +38,5 @@ class Xwininfo(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/xwud/package.py b/var/spack/repos/builtin/packages/xwud/package.py
index b4b92cd214..3ad6c41283 100644
--- a/var/spack/repos/builtin/packages/xwud/package.py
+++ b/var/spack/repos/builtin/packages/xwud/package.py
@@ -37,5 +37,5 @@ class Xwud(AutotoolsPackage):
     depends_on('libx11')
 
     depends_on('xproto@7.0.17:', type='build')
-    depends_on('pkg-config@0.9.0:', type='build')
+    depends_on('pkgconfig', type='build')
     depends_on('util-macros', type='build')
diff --git a/var/spack/repos/builtin/packages/zeromq/package.py b/var/spack/repos/builtin/packages/zeromq/package.py
index f48e868891..dbf1f921b7 100644
--- a/var/spack/repos/builtin/packages/zeromq/package.py
+++ b/var/spack/repos/builtin/packages/zeromq/package.py
@@ -47,7 +47,7 @@ class Zeromq(AutotoolsPackage):
     depends_on('autoconf', type='build', when='@develop')
     depends_on('automake', type='build', when='@develop')
     depends_on('libtool', type='build', when='@develop')
-    depends_on('pkg-config', type='build', when='@develop')
+    depends_on('pkgconfig', type='build', when='@develop')
 
     @when('@develop')
     def autoreconf(self, spec, prefix):