[PATCH] D32341: Fix a bug that warnings generated with -M or -MM flags

[Yuka Takahashi via Phabricator via cfe-commits]

yamaguchi created this revision.

This is a patch for bug [1]

Warnings should not be emitted with -M and -MM flags, because this mode is only used for generate MakeFiles.

[1]: 
https://bugs.llvm.org/show_bug.cgi?id=6817


https://reviews.llvm.org/D32341

Files:
  lib/Driver/ToolChains/Clang.cpp


Index: lib/Driver/ToolChains/Clang.cpp
===================================================================
--- lib/Driver/ToolChains/Clang.cpp
+++ lib/Driver/ToolChains/Clang.cpp
@@ -980,6 +980,7 @@
         DepTarget = Args.MakeArgString(llvm::sys::path::filename(P));
       }
 
+      CmdArgs.push_back("-w");
       CmdArgs.push_back("-MT");
       SmallString<128> Quoted;
       QuoteTarget(DepTarget, Quoted);


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