libiomp 20140926

Formula/libiomp.rb

@@ -0,0 +1,53 @@
+require "formula"
+
+class Libiomp < Formula
+  homepage "https://www.openmprtl.org/download"
+  url "https://www.openmprtl.org/sites/default/files/libomp_20140926_oss.tgz"
+  sha1 "488ff3874eb5c971523534cb3c987bfb5ce3addb"
+
+  depends_on :arch => :intel
+
+  fails_with :gcc  do
+    cause "libiomp can only be built with clang."
+  end
+
+  fails_with :gcc_4_0 do
+    cause "libiomp can only be built with clang."
+  end
+
+  ("4.3".."4.9").each do |n|
+    fails_with :gcc => n do
+      cause "libiomp can only be built with clang."
+    end
+  end
+
+  def install
+    # fix makefile for yosemite:
+    inreplace "src/makefile.mk" do |s|
+      s.gsub! "`sw_vers -productVersion` > 10.6", "`sw_vers -productVersion` == '10.10' || `sw_vers -productVersion`> 10.6"
+    end
+
+    intel_arch = MacOS.prefer_64_bit? ? "mac_32e" : "mac_32"
+
+    system "make", "compiler=clang"
+
+    (include/"libiomp").install Dir["exports/common/include/*"]
+    lib.install "exports/#{intel_arch}/lib.thin/libiomp5.dylib"
+  end
+
+  test do
+    testfile = <<-EOS.undent
+      #include <omp.h>
+      #include <stdlib.h>
+
+      int main(void) {
+          omp_set_num_threads(2);
+          omp_get_num_threads();
+          return EXIT_SUCCESS;
+      }
+    EOS
+    (testpath/"test.c").write(testfile)
+    system ENV.cc, "-L#{lib}", "-liomp5", "-I#{include}/libiomp", "test.c", "-o", "test"
+    system "./test"
+  end
+end