I currently don't do this, but I should. At the moment I am doing this wrong by using the CMAKE_TOOLCHAIN_FILE variable and setting up the MPI wrapper compilers in there. This is currently working for me, but it is the wrong way of doing it since the toolchain files should really only be used for cross compiling.
-- Will On 11/05/2009 11:07 AM, btho...@nexus.hu wrote:
Dear All, I am managing a CFD code where wish to set the CMAKE_C_COMPILER and CMAKE_CXX_COMPILER to openmpi wrappers. So far i was using cmake 2.4.7 and in the CMakeLists.txt the following lines were working perfectly: SET(CMAKE_C_COMPILER ${MPI_INSTALL_ROOT}/bin/mpicc ) SET(CMAKE_CXX_COMPILER ${MPI_INSTALL_ROOT}/bin/mpic++ ) Now that I changed to CMake 2.8.0 there is an infinite loop when trying to configure: n...@machine: ./deps/bin/cmake ../ -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Configuring done You have changed variables that require your cache to be deleted. Configure will be re-run and you may have to reset some variables. The following variables have changed: CMAKE_C_COMPILER= /usr/bin/gcc CMAKE_CXX_COMPILER= /usr/bin/c++ -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Configuring done You have changed variables that require your cache to be deleted. Configure will be re-run and you may have to reset some variables. The following variables have changed: CMAKE_C_COMPILER= /usr/bin/gcc CMAKE_CXX_COMPILER= /usr/bin/c++ ... and enters an infinite loop. If I set the compilers via command line arguments, its fine. But for easy-to-compile-by-the-users reason, I would like to set them in the CMakeLists.txt if possible. Can somebody help me out how to do this right? The machine: Ubuntu, openmpi 1.3.3 with system gcc 4.4.1 behind Thx: Th P.S.: I noted a bugfix in CMake 2.6.2 RC 2, may be connected: "Fix infinite recursion bug with try-compile and change of compilers"_______________________________________________ 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
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