diff --git a/var/spack/repos/builtin/packages/fakexrandr/package.py b/var/spack/repos/builtin/packages/fakexrandr/package.py
new file mode 100644
index 0000000000..aa38531906
--- /dev/null
+++ b/var/spack/repos/builtin/packages/fakexrandr/package.py
@@ -0,0 +1,46 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Fakexrandr(MakefilePackage):
+    """This is a tool to cheat an X11 server to believe that there are more
+    monitors than there actually are."""
+
+    homepage = "https://github.com/phillipberndt/fakexrandr"
+    git      = "https://github.com/phillipberndt/fakexrandr.git"
+
+    version('master', branch='master')
+
+    depends_on('libxrandr')
+    depends_on('libxinerama')
+    depends_on('libx11')
+    depends_on('python', type=('build', 'run'))
+
+    def edit(self, spec, prefix):
+        # Installation instructions involve running `configure` script,
+        # but this script just writes a `config.h` file like below.
+        version = spec['libxrandr'].version
+        with open('config.h', 'w') as config:
+            config.write("""
+#define XRANDR_MAJOR {0}
+#define XRANDR_MINOR {1}
+#define XRANDR_PATCH {2}
+#define REAL_XRANDR_LIB "{3}"
+#define FAKEXRANDR_INSTALL_DIR "{4}"
+""".format(version[0], version[1], version[2],
+                spec['libxrandr'].libs[0], prefix.lib))
+
+        # Also need to hack Makefile
+        makefile = FileFilter('Makefile')
+        makefile.filter('PREFIX=/usr', 'PREFIX=' + prefix)
+        makefile.filter('-fPIC', self.compiler.cc_pic_flag)
+
+        # And tool used to generate skeleton
+        filter_file('gcc', spack_cc, 'make_skeleton.py')
+
+        if 'platform=darwin' in spec:
+            makefile.filter('ldconfig', '')