Commit 5b6e064acd3da2b90883ae79fd14a79df50eeb8e
2015-04-07T20:01:43
CMake: fix CHECK_OBJC_SOURCE_COMPILES to work with GCC (thanks, Ivan!). Apparently -ObjC works with Clang, but -x objective-c works with both. Fixes Bugzilla #2392.
diff --git a/cmake/macros.cmake b/cmake/macros.cmake
index c234a56..96a7ce8 100644
--- a/cmake/macros.cmake
+++ b/cmake/macros.cmake
@@ -66,7 +66,7 @@ endmacro()
macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR)
set(PREV_REQUIRED_DEFS "${CMAKE_REQUIRED_DEFINITIONS}")
- set(CMAKE_REQUIRED_DEFINITIONS "-ObjC ${PREV_REQUIRED_DEFS}")
+ set(CMAKE_REQUIRED_DEFINITIONS "-x objective-c ${PREV_REQUIRED_DEFS}")
CHECK_C_SOURCE_COMPILES(${SOURCE} ${VAR})
set(CMAKE_REQUIRED_DEFINITIONS "${PREV_REQUIRED_DEFS}")
endmacro()