I OSX 10.5, have Intel Fortran, but I do not have Intel C, so need to compile OpenMPI using gcc, which is supposed to work. When I run the configure script I get an error message about configure: error: C and Fortran 77 compilers are not link compatible. Can not continue.
I am guessing that the problem is that the Intel Fortran is compiling for a 64 bit architecture, and gcc is by default compiling for 32 bit. I tried setting an environment variable CFLAGS=-m64, but this did not help. I am really a novice at passing compiler flags to things inside scripts, and also, not knowing these flags, and, also, maybe I tried to pass the wrong flag value. I would appreciate it if anyone who knows what to do could provide a very specific recipe for exactly what I need to do to fix this problem. Thanks very much. -bg
