site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com User-agent: Mutt/1.4.2.2i Peter, This is exactly the sort of problem fink developers using openmpi have been running into... ----------------------------------------------------------------------- I tried several patches to the paraview build scripts in order to get rid of this undefined symbol, but I was not successful, one reason being that the build process uses cmake which I find much less transparent than the usual configure/libtool combination. While looking through the build script, I see now that in fact there is a difference between the linker command for this library libicet_mpi.dylib and many other dylibs built in paraview, for example libvtkParallel.pv2.6.dylib. Those use an explicit -Wl,-flat_namespace,-U,_environ linker flag. Could it be that this is there in order to avoid exactly this problem? I don't know. I'll look some more where this comes from. Here the error: cd /sw_unstable/src/fink.build/paraview-mpi-openmpi-2.6.1-1001/paraview-mpi-openmpi-darwin/Utilities/IceT/src/communication && /sw/bin/cmake -E cmake_link_script CMakeFiles/icet_mpi.dir/link.txt --verbose=1 /sw/bin/gcc -O3 -DNDEBUG -dynamiclib -headerpad_max_install_names -Wl,-search_paths_first -o ../../../../bin/libicet_mpi.dylib -install_name /sw/lib/paraview-2.6/libicet_mpi.dylib "CMakeFiles/icet_mpi.dir/mpi.o" -L/sw_unstable/src/fink.build/paraview-mpi-openmpi-2.6.1-1001/paraview-mpi-openmpi-darwin/bin -L/usr/X11R6/lib -lGLU -L/usr/X11R6/lib -lGL -L/sw/lib/openmpi -lmpi -lmpi_cxx -licet -L/usr/X11R6/lib -lGLU -L/usr/X11R6/lib -lGL -L/sw/lib/openmpi -lmpi -lmpi_cxx ld: Undefined symbols: _environ /usr/bin/libtool: internal link edit command failed make[2]: *** [bin/libicet_mpi.dylib] Error 1 ----------------------------------------------------------------------------- So the question becomes which is worse, forcing the openmpi developers to not leave undefined environ variables in their shared libraries or off loading the complexities of linking shared libraries using those with the undefined symbols. My view is, since openmpi is already wrappering those declarations of environ for _WINDOWS, that expanding that to __APPLE__ is trivial. In the process of creating such a patch I discovered that they weren't catching all of the declarations of environ for Windows anyway. Jack _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com