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-rw-r--r--lib/Driver/Tools.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 4d1aca436a..7c73780036 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -474,6 +474,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
CmdArgs.push_back("-fno-common");
Args.AddLastArg(CmdArgs, options::OPT_dM);
+ Args.AddLastArg(CmdArgs, options::OPT_dD);
Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);