CxxStdlib: allow for nil stdlibs

A nil stdlib value represents non-C++ code.

1 files changed, 5 insertions, 0 deletions

diff --git a/Library/Homebrew/test/test_stdlib.rb b/Library/Homebrew/test/test_stdlib.rb
index a5e276746..79af446d7 100644
--- a/Library/Homebrew/test/test_stdlib.rb
+++ b/Library/Homebrew/test/test_stdlib.rb
@@ -13,6 +13,7 @@ class CxxStdlibTests < Test::Unit::TestCase
     @gcc48 = CxxStdlib.new(:libstdcxx, 'gcc-4.8')
     @gcc49 = CxxStdlib.new(:libstdcxx, 'gcc-4.9')
     @lcxx  = CxxStdlib.new(:libcxx, :clang)
+    @purec = CxxStdlib.new(nil, :clang)
   end
 
   def test_apple_libstdcxx_intercompatibility
@@ -59,4 +60,8 @@ class CxxStdlibTests < Test::Unit::TestCase
     assert_equal stdlib.compiler, :clang
     assert_equal stdlib.type, :libstdcxx
   end
+
+  def test_compatibility_for_non_cxx_software
+    assert @purec.compatible_with?(@clang)
+  end
 end