The way I have accomplished this is to: export CC=mpicc export CXX=mpicxx
blow away your build tree and then re-configure re-generate On Wed, May 26, 2010 at 11:38 AM, Michael Wild <[email protected]> wrote: > > On 26. May, 2010, at 17:20 , Marcel Loose wrote: > > > Hi all, > > > > I was wondering how one should use find_package(MPI) to properly set the > > C/C++ compiler(s). Normally, you call find_package() after the project() > > command. However, by that time the CMAKE_<LANG>_COMPILER cache variables > > have already been set. Should one FORCE these cache variables to the > > value of MPI_COMPILER? > > > > I vaguely remember that setting CMAKE_<LANG>_COMPILER after the > > project() statement was a definite no-no, because all kinds of tests, > > executed by the project() command, are done with the default C/C++ > > compilers. > > > > Best regards, > > Marcel Loose. > > > Usually mpiCC and cohorts are just wrapper scripts which add appropriate > include directories and libraries to the command line. If I remember > correctly, FindMPI.cmake detects those and provides them via > MPI_COMPILE_FLAGS, MPI_INCLUDE_PATH, MPI_LINK_FLAGS and MPI_LIBRARIES. So, > you actually don't need to set the compiler to one of the MPI compiler > wrappers. > > Michael > _______________________________________________ > 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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