http://www.cse.yorku.ca/~roumani/fortran/ftn.htm) or Cygwin (http://www.cygwin.com/),
for OS X try the g77compiler from the HPC Mac OSX project (http://hpc.sourceforge.net/) and for Linux you should be ableto install g77</e
Entering directory `/home/gaurish108/Desktop/Research Meetings/PETSC and SUper LU/SuperLU_4.0/INSTALL'***make[1]: g77: Command not found***
make[1]: *** [testdlamch一直以为g77 cam会和gcc捆绑在一起。