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Fix CMake CMAKE_REQUIRED_FLAGS handling to preserve existing CMake flags required by Emscripten toolchain.

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Jukka Jyl?nki
2016-09-13 00:03:50 -07:00
parent b54eb82c67
commit 264e996e0f
2 changed files with 10 additions and 7 deletions
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2
CMakeLists.txt
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@@ -205,7 +205,7 @@ set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
if(CYGWIN)
# We build SDL on cygwin without the UNIX emulation layer
include_directories("-I/usr/include/mingw")
set(CMAKE_REQUIRED_FLAGS "-mno-cygwin")
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mno-cygwin")
check_c_source_compiles("int main(int argc, char **argv) {}"
HAVE_GCC_NO_CYGWIN)
set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})