See, e.g., https://gcc.gnu.org/fortran/ "We highly encourage users to move from g77, which is no longer maintained, and start taking advantage of GFortran's modern features. Legacy g77 code will compile fine in almost all cases." I haven't used either version in many years, so can't say from personal experience. But g77 would be quite old by now. Glenn At 2:44pm on Thu, 16 Mar 2017, Bidwell, Christopher wrote: > Thanks for the quick response. rpm -ql of that package shows: > > I don't know anything really about fortran stuff. Does gfortran44 have the > same abilities and backward compatibility as g77 or f77? > > /usr/bin/gfortran44 > /usr/lib/gcc > /usr/lib/gcc/x86_64-redhat-linux > /usr/lib/gcc/x86_64-redhat-linux/4.4.7 > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/32 > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/32/libgfortran.a > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/32/libgfortran.so > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/32/libgfortranbegin.a > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/finclude > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/finclude/omp_lib.f90 > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/finclude/omp_lib.h > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/finclude/omp_lib.mod > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/finclude/omp_lib_kinds.mod > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libgfortran.a > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libgfortran.so > /usr/lib/gcc/x86_64-redhat-linux/4.4.7/libgfortranbegin.a > /usr/libexec/gcc > /usr/libexec/gcc/x86_64-redhat-linux > /usr/libexec/gcc/x86_64-redhat-linux/4.4.7 > /usr/libexec/gcc/x86_64-redhat-linux/4.4.7/f951 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2002.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2002.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2003.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2003.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2004.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2004.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2005.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2005.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2006.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2006.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2007.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2007.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog-2008.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog.libgfortran.bz2 > /usr/share/doc/compat-gcc-44-gfortran-4.4.7/ChangeLog.ptr.bz2 > /usr/share/info/gfortran44.info.gz > /usr/share/man/man1/gfortran44.1.gz > > On Thu, Mar 16, 2017 at 1:40 PM, Mark Stodola <[log in to unmask]> wrote: > >> On 03/16/2017 02:32 PM, Bidwell, Christopher wrote: >> >>> Hi all! >>> >>> I'm looking for g77 on SL7. It was available on SL6 but I don't see it >>> for 7. Can someone point me in the right direction? >>> >>> Thanks! >>> >>> >>> >> I could be wrong, but it might be part of compat-gcc-44-gfortran. >> >> > > > On Thu, Mar 16, 2017 at 1:40 PM, Mark Stodola <[log in to unmask]> wrote: > >> On 03/16/2017 02:32 PM, Bidwell, Christopher wrote: >> >>> Hi all! >>> >>> I'm looking for g77 on SL7. It was available on SL6 but I don't see it >>> for 7. Can someone point me in the right direction? >>> >>> Thanks! >>> >>> >>> >> I could be wrong, but it might be part of compat-gcc-44-gfortran. >> >> >