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-rw-r--r--clang/lib/Driver/Tools.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 4392f4f6708..3e1eb886c90 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -55,9 +55,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
else
CmdArgs.push_back("-E");
} else if (isa<PrecompileJobAction>(JA)) {
- // No special option needed, driven by -x.
- //
- // FIXME: Don't drive this by -x, that is gross.
+ CmdArgs.push_back("-emit-pth");
} else {
assert(isa<CompileJobAction>(JA) && "Invalid action for clang tool.");
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