[Developers] Detection of gfortran

[Jian Tao]

Ian Hinder wrote:
> Jian Tao wrote:
>>>>>> (2) Why was there no error message that the compiler was not
>>>>>> recognized
>>>>>> correctly?

gfortran is missing from configure.in and configure. It is never
tested during the configuration stage. It should be fixed.

------------
if test -z "$F90" ; then
   AC_CHECK_PROGS(F90, f90 pgf90 xlf90 ifort)
fi
...
if test -z "$F90" ; then
   for ac_prog in f90 pgf90 xlf90 ifort
do
------------