On Wed, Feb 18, 2009 at 6:52 AM, Bill Hoffman <bill.hoff...@kitware.com> wrote: > Birju Prajapati wrote: >> >> I've figured it out. I added the following lines into the root >> CMakeLists.txt file: >> >> >> SET(CMAKE_CXX_FLAGS "-m64") >> >> SET(CMAKE_C_FLAGS "-m64") >> >> SET(CMAKE_EXE_LINKER_FLAGS "-m64") >> >> SET(CMAKE_MODULE_LINKER_FLAGS "-m64") >> >> SET(CMAKE_SHARED_LINKER_FLAGS "-m64") >> >> > > That is not the preferable way to do this. As it hard codes flags into the > CMake file. The way I would do it is: > > export CXXFLAGS=-m64 > export CFLAGS=-m64 > export LDFLAGS=-m64 > > cmake ../myproject > > If those environment variables are set BEFORE you run cmake, then cmake will > put them into the cache correctly.
Couldn't you use the check_c_source_runs() macro to test if your system supports the -m64 flag? That way you wouldn't need to require the user to specify it (always fraught with peril). -- Aaron Turner http://synfin.net/ http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
