From e56f5c4d6b4626a428b3c209f00eff59cd37b22f Mon Sep 17 00:00:00 2001
From: Cyrus Harrison <cyrush@llnl.gov>
Date: Tue, 22 Mar 2016 16:59:40 +0100
Subject: [PATCH] add Intel TBB package

---
 .../repos/builtin/packages/tbb/package.py     | 79 +++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 var/spack/repos/builtin/packages/tbb/package.py

diff --git a/var/spack/repos/builtin/packages/tbb/package.py b/var/spack/repos/builtin/packages/tbb/package.py
new file mode 100644
index 0000000000..56ffe4c27c
--- /dev/null
+++ b/var/spack/repos/builtin/packages/tbb/package.py
@@ -0,0 +1,79 @@
+from spack import *
+import os
+import glob
+
+class Tbb(Package):
+    """Widely used C++ template library for task parallelism.
+    Intel Threading Building Blocks (Intel TBB) lets you easily write parallel
+    C++ programs that take full advantage of multicore performance, that are
+    portable and composable, and that have future-proof scalability.
+    """
+    homepage = "http://www.threadingbuildingblocks.org/"
+
+    # Only version-specific URL's work for TBB
+    version('4.4.3', '80707e277f69d9b20eeebdd7a5f5331137868ce1', url='https://www.threadingbuildingblocks.org/sites/default/files/software_releases/source/tbb44_20160128oss_src_0.tgz')
+
+    def coerce_to_spack(self,tbb_build_subdir):
+        for compiler in ["icc","gcc","clang"]:
+              fs = glob.glob(join_path(tbb_build_subdir,"*.%s.inc" % compiler ))
+              for f in fs:
+                  lines = open(f).readlines()
+                  of = open(f,"w")
+                  for l in lines:
+                      if l.strip().startswith("CPLUS ="):
+                        of.write("# coerced to spack\n")
+                        of.write("CPLUS = $(CXX)\n")
+                      elif l.strip().startswith("CPLUS ="):
+                        of.write("# coerced to spack\n")
+                        of.write("CONLY = $(CC)\n")
+                      else:
+                        of.write(l);
+
+    def install(self, spec, prefix):
+        #
+        # we need to follow TBB's compiler selection logic to get the proper build + link flags
+        # but we still need to use spack's compiler wrappers
+        # to accomplish this, we do two things:
+        #
+        # * Look at the spack spec to determine which compiler we should pass to tbb's Makefile
+        #
+        # * patch tbb's build system to use the compiler wrappers (CC, CXX) for
+        #    icc, gcc, clang
+        #    (see coerce_to_spack())
+        #
+        self.coerce_to_spack("build")
+
+        if spec.satisfies('%clang'):
+            tbb_compiler = "clang"
+        elif spec.satisfies('%intel'):
+            tbb_compiler = "icc"
+        else:
+            tbb_compiler = "gcc"
+
+
+        mkdirp(prefix)
+        mkdirp(prefix.lib)
+
+        #
+        # tbb does not have a configure script or make install target
+        # we simply call make, and try to put the pieces together
+        #
+        make("compiler=%s"  %(tbb_compiler))
+
+        # install headers to {prefix}/include
+        install_tree('include',prefix.include)
+
+        # install libs to {prefix}/lib
+        tbb_lib_names = ["libtbb",
+                         "libtbbmalloc",
+                         "libtbbmalloc_proxy"]
+
+        for lib_name in tbb_lib_names:
+            # install release libs
+            fs = glob.glob(join_path("build","*release",lib_name + ".*"))
+            for f in fs:
+                install(f, prefix.lib)
+            # install debug libs if they exist
+            fs = glob.glob(join_path("build","*debug",lib_name + "_debug.*"))
+            for f in fs:
+                install(f, prefix.lib)