[PATCH 1/1] Fix rtti flags with cmake

[Jan Vesely]

Patch by Johannes Obermayr
http://lists.freedesktop.org/archives/mesa-dev/2013-October/046582.html

Fixes http://llvm.org/bugs/show_bug.cgi?id=14200

CC: Johannes Obermayr <johannesobermayr at gmx.de>
CC: Alexander von Gluck <kallisti5 at unixzen.com>
CC: Bill Wendling <isanbard at gmail.com>
---
Hi,
I have been using this patch for some time with
no problems (local build of git master). Comment
on #14200 requests to send the patch to ML,
so here it goes.

regards,
Jan

 tools/llvm-config/CMakeLists.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/llvm-config/CMakeLists.txt b/tools/llvm-config/CMakeLists.txt
index e653b77..258f62c 100644
--- a/tools/llvm-config/CMakeLists.txt
+++ b/tools/llvm-config/CMakeLists.txt
@@ -1,3 +1,5 @@
+include(LLVMProcessSources)
+
 set(LLVM_LINK_COMPONENTS support)
 
 set(BUILDVARIABLES_SRCPATH ${CMAKE_CURRENT_SOURCE_DIR}/BuildVariables.inc.in)
@@ -20,6 +22,21 @@ set(LLVM_LDFLAGS ${CMAKE_SHARED_LINKER_FLAGS})
 set(LLVM_BUILDMODE ${CMAKE_BUILD_TYPE})
 set(LLVM_SYSTEM_LIBS ${SYSTEM_LIBS})
 string(REPLACE ";" " " LLVM_TARGETS_BUILT "${LLVM_TARGETS_TO_BUILD}")
+
+# Set common compiler options:
+if( NOT LLVM_REQUIRES_EH )
+  if( MSVC )
+    llvm_replace_compiler_option(LLVM_CXXFLAGS "/EHsc" "/EHs-c-")
+  endif()
+endif()
+if( NOT LLVM_REQUIRES_RTTI )
+  if( LLVM_COMPILER_IS_GCC_COMPATIBLE )
+    llvm_replace_compiler_option(LLVM_CXXFLAGS "-frtti" "-fno-rtti")
+  elseif( MSVC )
+    llvm_replace_compiler_option(LLVM_CXXFLAGS "/GR" "/GR-")
+  endif()
+endif()
+
 configure_file(${BUILDVARIABLES_SRCPATH} ${BUILDVARIABLES_OBJPATH} @ONLY)
 
 # Set build-time environment(s).
-- 
1.8.4.2