On Sep 29, 2015, at 1:54 AM, Nils Gladitz wrote: > Is it possible that beyond setting CMAKE_OSX_ARCHITECTURES the project also > tries to manually add -arch flags to CFLAGS/CXXFLAGS? > > The test binary produced for compiler identification with just > CMAKE_OSX_ARCHITECTURES set is not a fat binary for me and identification is > successful (CMake 3.3.2). > > Manually adding "-arch x86_64 -arch i386" to the compiler flags breaks this > since now the test binary itself is also fat.
You are correct: in addition to giving cmake the -DCMAKE_OSX_ARCHITECTURES="x86_64;i386" argument, MacPorts includes "-arch x86_64 -arch i386" in the CFLAGS, CXXFLAGS, and LDFLAGS environment variables. I am not certain, but I think the only reason why we are doing this for cmake-using ports is that we do this for all ports, and no code was ever added to override this for cmake-using ports. Perhaps this didn't cause problems before, or we never noticed it caused problems before. I will work adding code to MacPorts to remove these flags for cmake-using ports. Thanks for the suggestion. -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
