I am using the 12.4 release of the Solaris Studio compilers on a Solaris system that was fine with 1.10.1. I am configuring with
configure --prefix=[...] --enable-debug CC=cc CXX=CC FC=f90 \ CFLAGS=-m64 --with-wrapper-cflags=-m64 \ CXXFLAGS='-m64 -library=stlport4' --with-wrapper-cxxflags='-m64 -library=stlport4' \ FCFLAGS=-m64 --with-wrapper-fcflags=-m64 \ --with-verbs --enable-mpi-java --with-jdk-dir=/usr/jdk/latest The build fails to link libmpi_usempi_ignore_tkr.la, apparently because "-m64" is missing from the link command (note that the default compiler output is "-m32"): libtool: compile: f90 -DHAVE_CONFIG_H -I. -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/ompi/mpi/fortran/use-mpi-ignore-tkr -I../../../../opal/include -I../../../../orte/include -I../../../../ompi/include -I../../../../oshmem/include -I../../../../opal/mca/hwloc/hwloc191/hwloc/include/private/autogen -I../../../../opal/mca/hwloc/hwloc191/hwloc/include/hwloc/autogen -DOMPI_PROFILE_LAYER=0 -DOMPI_COMPILING_FORTRAN_WRAPPERS=1 -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1 -I../../../.. -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/opal/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/orte/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/ompi/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/oshmem/include -D_REENTRANT -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/opal/mca/hwloc/hwloc191/hwloc/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/mca/hwloc/hwloc191/hwloc/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/opal/mca/event/libevent2021/libevent -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/opal/mca/event/libevent2021/libevent/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/mca/event/libevent2021/libevent/include -I../../../../ompi/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/ompi/include -I../../../.. -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1 -c /shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/ompi/mpi/fortran/use-mpi-ignore-tkr/mpi-ignore-tkr.F90 -KPIC -o .libs/mpi-ignore-tkr.o /bin/sh ../../../../libtool --tag=FC --mode=link f90 -I../../../../ompi/include -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1/ompi/include -I../../../.. -I/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/openmpi-1.10.2rc1 -version-info 6:0:0 -o libmpi_usempi_ignore_tkr.la -rpath /shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/INST/lib mpi-ignore-tkr.lo /shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/ libopen-pal.la -lm -lsocket -lnsl libtool: link: f90 -G -h libmpi_usempi_ignore_tkr.so.6 -o .libs/libmpi_usempi_ignore_tkr.so.6.0.0 .libs/mpi-ignore-tkr.o -R/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/.libs -R/shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/INST/lib /shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/.libs/libopen-pal.so -lsendfile -lpicl -lkstat -llgrp -lpciaccess -lm -lsocket -lnsl ld: fatal: file /shared/OMPI/openmpi-1.10.2rc1-solaris11-x64-ib-ss12u4/BLD/opal/.libs/libopen-pal.so: wrong ELF class: ELFCLASS64 gmake[2]: *** [libmpi_usempi_ignore_tkr.la] Error 2 -Paul -- Paul H. Hargrove phhargr...@lbl.gov Computer Languages & Systems Software (CLaSS) Group Computer Science Department Tel: +1-510-495-2352 Lawrence Berkeley National Laboratory Fax: +1-510-486-6900