I am attempting to build OpenMPI-1.1 on a RHEL4u2 system that has the standard gfortran install as part of the distro and with a self installed recent version of g95 from g95.org but when I use the FC flag to configure to tell it where to find the g95 executable I get a message during the configure run of
*** Fortran 90/95 compiler checking whether we are using the GNU Fortran compiler... yes checking whether /app/g95-newer/g95-install/bin/x86_64-unknown-linux-gnu-g95 accepts -g... yes checking if Fortran compiler works... yes checking whether gfortran and /app/g95-newer/g95-install/bin/x86_64-unknown-linux-gnu-g95 compilers are compatible... no configure: WARNING: *** Fortran 77 and Fortran 90 compilers are not link compatible configure: WARNING: *** Disabling MPI Fortran 90/95 bindings checking if Fortran 90 compiler supports LOGICAL... skipped checking if Fortran 90 compiler supports INTEGER... skipped checking if Fortran 90 compiler supports INTEGER*1... skipped checking if Fortran 90 compiler supports INTEGER*2... skipped checking if Fortran 90 compiler supports INTEGER*4... skipped checking if Fortran 90 compiler supports INTEGER*8... skipped checking if Fortran 90 compiler supports INTEGER*16... skipped checking if Fortran 90 compiler supports REAL... skipped checking if Fortran 90 compiler supports REAL*4... skipped checking if Fortran 90 compiler supports REAL*8... skipped checking if Fortran 90 compiler supports REAL*16... skipped checking if Fortran 90 compiler supports DOUBLE PRECISION... skipped checking if Fortran 90 compiler supports COMPLEX... skipped checking if Fortran 90 compiler supports COMPLEX*8... skipped checking if Fortran 90 compiler supports COMPLEX*16... skipped checking if Fortran 90 compiler supports COMPLEX*32... skipped checking if Fortran 90 compiler supports DOUBLE COMPLEX... skipped I am not specifying any particular FCFLAGS but from searching through the mailing lists I am pretty sure I should be but I just don't know what exactly. Any info on this anywhere?
