sean yang wrote: > When I compile from GCC4.0.2 source, I generated an executable named > 'gfortran'. > My quetion is whether this is the only executable of Fortran compiler? i.e., > it replaces 'g77' and 'g95' to compile fortran 77 and fortran 90 > code?---'g77' and 'g95' are not generated from this source? I suggest you read the manual and the GCC wiki. All of these questions are answered. http://gcc.gnu.org/wiki/GFortran http://gcc.gnu.org/wiki/TheOtherGCCBasedFortranCompiler http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gfortran/Getting-Started.html#Getting-Started http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gfortran/GFORTRAN-and-G77.html#GFORTRAN-and-G77 > Can I somehow make the code compiled by gfortran compatible to the code > compiled by g77? Because symbol name in lots of libraries are g77 > compitable. Here is a concrete example, http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gfortran/Code-Gen-Options.html#index-g_t_0040option_007b_002dff2c_007d-option-141 Brian
