Hi, I use sometimes OpenMPI and it looks like the mpicc wrapper gives gcc an inexistant directory with -I option. If I ask mpicc how it calls gcc it prints the following:
[audet@linux15 libdfem]$ mpicc -show gcc -I/usr/local/openmpi-1.1.2/include -I/usr/local/openmpi-1.1.2/include/openmpi -pthread -L/usr/local/openmpi-1.1.2/lib -lmpi -lorte -lopal -ldl -Wl,--export-dynamic -lnsl -lutil -lm -ldl [audet@linux15 libdfem]$ ls /usr/local/openmpi-1.1.2/include /usr/local/openmpi-1.1.2/include/openmpi ls: /usr/local/openmpi-1.1.2/include/openmpi: No such file or directory /usr/local/openmpi-1.1.2/include: mpi.h mpif-common.h mpif-config.h mpif.h [audet@linux15 libdfem]$ The directory 'usr/local/openmpi-1.1.2/include/openmpi' doesn't exist. And this explains the annoying warnings I get when I compile my sources (I like to have no warning): cc1plus: warning: /usr/local/openmpi-1.1.2/include/openmpi: No such file or directory This happens with OpenMPI 1.1.2 configured as follow: ./configure --prefix=/usr/local/openmpi-1.1.2 --disable-mpi-f90 --disable-mpi-cxx --disable-cxx-exceptions --with-io-romio-flags=--with-file-system=ufs+nfs Thanks, Martin Audet
