Hello, I am trying to compile mpich 3.0.4 on my machine: uname -a Darwin shackleton.ess.uci.edu 12.3.0 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64 I successfully installed mpich 1.5 several times with the following options: ./configure --prefix="$ISSM_DIR/externalpackages/mpich2/install" --enable-shared However, with the same options, the build of mpich 3.0.4 at linking with a segmentation fault: Making all in . make[3]: Nothing to be done for `all-am'. Making all in . GEN lib/libmpich.la collect2: ld terminated with signal 11 [Segmentation fault: 11] make[2]: *** [lib/libmpich.la] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 with VERBOSE=1: /bin/sh ./libtool --tag=F77 --mode=link gfortran -O2 -L./src/mpl -L./src/openpa/src -version-info 10:4:0 -Wl,-flat_namespace -o lib/libmpich.la -rpath /Users/mmorligh/Desktop/issmuci/trunk-jpl/externalpackages/mpich/install/lib src/mpi/attr/attrutil.lo src/mpi/attr/dup_fn.lo src/mpi/coll/allred_group.lo src/mpi/coll/barrier_group.lo ………… src/mpi_t/.libs/pvar_stop.o src/mpi_t/.libs/pvar_write.o src/binding/f77/.libs/setbot.o src/binding/f77/.libs/setbotf.o -Wl,-force_load,src/mpi/romio/.libs/libromio.a -Wl,-force_load,src/mpi/romio/.libs/libpromio.a -L./src/mpl -L./src/openpa/src /Users/mmorligh/Desktop/issmuci/trunk-jpl/externalpackages/mpich/src/src/mpl/.libs/libmpl.dylib /Users/mmorligh/Desktop/issmuci/trunk-jpl/externalpackages/mpich/src/src/openpa/src/.libs/libopa.dylib -lpthread -O2 -Wl,-flat_namespace -install_name /Users/mmorligh/Desktop/issmuci/trunk-jpl/externalpackages/mpich/install/lib/libmpich.10.dylib -compatibility_version 11 -current_version 11.4 -Wl,-single_module collect2: ld terminated with signal 11 [Segmentation fault: 11] make[2]: *** [lib/libmpich.la] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 Has anybody reported a similar issue? Do you think this is a problem with libtool? Thanks a lot for your help -- Mathieu Morlighem Assistant Project Scientist Department of Earth System Science University of California, Irvine