[PATCH] D14180: enable -fms-extensions by default on the mingw-w64 target

Martell Malone via cfe-commits cfe-commits at lists.llvm.org
Thu Oct 29 10:19:50 PDT 2015

martell created this revision.
martell added a reviewer: rnk.
martell added subscribers: cfe-commits, yaron.keren, compnerd.

As of commit b8a164 mingw-w64 support clang with -fms-extensions.
We can built the mingw-w64 crt with clang now also.
As we are dropping support for mingw.org I think switching to this would be a good move
rather then using the gcc hacks we currently comply to




Index: lib/Driver/Tools.cpp
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -4654,7 +4654,7 @@

   // -fms-extensions=0 is default.
   if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
-                   IsWindowsMSVC))
+                   IsWindowsMSVC || IsWindowsGNU))

   // -fno-use-line-directives is default.

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