------- Comment #2 from burnus at gcc dot gnu dot org 2008-03-30 13:51 ------- > -ff2c: the return value is returned in an additional argument as g77 and other > fortran compilers do it
I want to point out that all? modern compiler use the -fno-f2c scheme which is compatible with the default gfortran output. The f2c syntax goes back to the f2c compiler (www.netlib.org/f2c) which was created at a time when C compilers were available but no Fortran 77 compiler for free. It translated the Fortran code into C code which had then to be compiled. (This is better and more correctly described at http://en.wikipedia.org/wiki/F2c) g77 used for legacy reasons still the f2c calling convention but -fno-f2c was already available for g77. And gfortran only support -ff2c for legacy code as do some other vendors. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35765
