Bug#8945: Add -cxx-isystem option to specify C++ system directories.

It works like -isystem and the search path keeps -isystem and
-cxx-isystem in order relative to each other. -cxx-isystem is only used
for C++ sources though. Drop the existing -cxx-system-include option for
cc1 as it is now redundant.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126167 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/include/clang/Frontend/HeaderSearchOptions.h b/include/clang/Frontend/HeaderSearchOptions.h
index cbb4a57993..51e22d23d7 100644
--- a/include/clang/Frontend/HeaderSearchOptions.h
+++ b/include/clang/Frontend/HeaderSearchOptions.h
@@ -22,6 +22,7 @@ namespace frontend {
     Quoted = 0,     ///< `#include ""` paths. Thing `gcc -iquote`.
     Angled,         ///< Paths for both `#include ""` and `#include <>`. (`-I`)
     System,         ///< Like Angled, but marks system directories.
+    CXXSystem,      ///< Like System, but only used for C++.
     After           ///< Like System, but searched after the system directories.
   };
 }