commit 1f10cc5eb4c30f8082ac1d23d9d7f07e8a6d9f97
author Aaron Ballman <aaron@aaronballman.com> Tue Jul 31 01:21:00 2012 +0000
committer Aaron Ballman <aaron@aaronballman.com> Tue Jul 31 01:21:00 2012 +0000
tree 409894c0d2aa11ba4c24e53448e395c6121157ea
parent 2b6a0dfd4ce1f8cf6b1f4a1bcb8fb13c39efb347

No longer emitting a PCH file when using -fsyntax-only on a header file.  Fixes PR13343.

llvm-svn: 161019

clang/lib/Driver/Tools.cpp

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index e13f709..189ff59 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -1537,7 +1537,9 @@
     // Use PCH if the user requested it.
     bool UsePCH = D.CCCUsePCH;
 
-    if (UsePCH)
+    if (JA.getType() == types::TY_Nothing)
+      CmdArgs.push_back("-fsyntax-only");
+    else if (UsePCH)
       CmdArgs.push_back("-emit-pch");
     else
       CmdArgs.push_back("-emit-pth");