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From: Steven A. DuChene (linux-clusters_at_[hidden])
Date: 2006-08-18 16:55:54


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?