[cfe-commits] r80289 - /cfe/trunk/lib/Frontend/InitPreprocessor.cpp

[Eli Friedman]

Author: efriedma
Date: Thu Aug 27 17:01:41 2009
New Revision: 80289

URL: http://llvm.org/viewvc/llvm-project?rev=80289&view=rev
Log:
Define _GNU_SOURCE in C++ mode so that clang works with GNU libstdc++.


Modified:
    cfe/trunk/lib/Frontend/InitPreprocessor.cpp

Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=80289&r1=80288&r2=80289&view=diff

==============================================================================
--- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
+++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Thu Aug 27 17:01:41 2009
@@ -313,6 +313,8 @@
       //   C++ translation unit.
       DefineBuiltinMacro(Buf, "__cplusplus=199711L");
     DefineBuiltinMacro(Buf, "__private_extern__=extern");
+    // Ugly hack to work with GNU libstdc++.
+    DefineBuiltinMacro(Buf, "_GNU_SOURCE=1");
   }
   
   // Filter out some microsoft extensions when trying to parse in ms-compat