------- Comment #2 from burnus at gcc dot gnu dot org 2008-05-23 17:49 ------- Could you provide some more details, especially about your gfortran version. The problem is that using:
$ gfortran-4.1 -fno-underscoring aa.F $ gfortran-4.2 -fno-underscoring aa.F $ gfortran-4.3 -fno-underscoring aa.F $ gfortran -fno-underscoring aa.F # 4.4.0 of today all work. Where did you obtain gfortran and GCC? Which system are you on? If I call gcc (4.1 to 4.4) with -fno-underscoring then I get the warning: cc1: warning: command line option "-fno-underscoring" is valid for Fortran but not for C Therefore, I wonder whether you are either using an ancient version of gfortran or that for some reason your new gfortran calls an older version of gcc. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36309