This is originated on message from Platform preparing RH HPC 5.5: We have found that the mvapich rpm (mvapich-1.2.0-0.3562.1.el5.src.rpm ) in RHEL 5.5 does not have Fortran support. We require fortran support to be present for this package in order for us to compile fortran packages against it. My observation: Configure is already run with --enable-f77 --enable-f90 ./configure --enable-sharedlib --with-device=ch_gen2 --with-arch=LINUX -prefix=/usr/lib/mvapich/1.2.0-gcc --with-echo --enable-f77 --enable-f90 --with-romio '-lib=-libverbs -libumad -lpthread -Wall' -mpe_opts=--with-cflags=-m32 --with-fflags=-m32 but fortran seems to be disabled during "Configuring Fortran subsystem": configure: warning: Could not find a way to access the command line from Fortran 77 configure: error: Command line access is required for MPICH Error configuring the Fortran subsystem! Turning off Fortran support
*** This bug has been marked as a duplicate of bug 584218 ***