ccc: Implement support clang PTH using gcc PCH style interface.

This requires some hackery, as gcc's PCH mechanism changes behavior,
whereas while PTH is simply a cache. Notably:

 - Automatically cause clang to load a .pth file if we find one that
   matches a command line -include argument (similar to how gcc
   looks for .gch files).

 - When generating precompiled headers, translate the suffix from .gch
   to .pth (so we do not conflict with actual gcc PCH files).

 - When generating precompiled headers, copy the input header to the
   same location as the output PTH file. This is necessary because gcc
   supports -include xxx.h even if xxx.h doesn't exist, but for clang
   we need to actually have the contents of this file available.

llvm-svn: 62246

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/tools/ccc/ccclib/Arguments.py b/clang/tools/ccc/ccclib/Arguments.py
index 97564558a61..a3c25f197be 100644
--- a/clang/tools/ccc/ccclib/Arguments.py
+++ b/clang/tools/ccc/ccclib/Arguments.py
@@ -556,7 +556,7 @@ class OptionParser:
         self.addOption(JoinedOrSeparateOption('-idirafter', self.iGroup))
         self.addOption(JoinedOrSeparateOption('-iquote', self.iGroup))
         self.isysrootOption = self.addOption(JoinedOrSeparateOption('-isysroot', self.iGroup))
-        self.addOption(JoinedOrSeparateOption('-include', self.iGroup))
+        self.includeOption = self.addOption(JoinedOrSeparateOption('-include', self.iGroup))
         self.addOption(JoinedOption('-i', self.iGroup))
 
         self.keep_private_externsOption = self.addOption(JoinedOrSeparateOption('-keep_private_externs'))