support --param=std=gnu++XX

llvm-svn: 283997

diff --git a/libcxx/test/libcxx/test/config.py b/libcxx/test/libcxx/test/config.py
index 06d3a7b..a786c3f 100644 (file)
--- a/libcxx/test/libcxx/test/config.py
+++ b/libcxx/test/libcxx/test/config.py
@@ -347,7 +347,7 @@ class Configuration(object):
                     'Failed to infer a supported language dialect from one of %r'
                     % possible_stds)
         self.cxx.compile_flags += ['-std={0}'.format(std)]
-        self.config.available_features.add(std)
+        self.config.available_features.add(std.replace('gnu++', 'c++'))
         # Configure include paths
         self.configure_compile_flags_header_includes()
         self.target_info.add_cxx_compile_flags(self.cxx.compile_flags)