Oh by the way, I finally found a distribution of MOPAC7 that works. I needed to hack the Makefile a little once it was generated to work around problems with MAIN__ and main() in libf2c so I could actually get a binary. But other than that, it’s been great!
A couple of possible ways to “fix” the MAIN__ problem:
1. Add this to your C source:
int MAIN__( )
2. Add this to LDFLAGS:
-Xlinker -defsym -Xlinker MAIN__=main
Incidentally, I got Tinker working too. Apparently Firefox sometimes doesn’t like downloading complete files. wget –passive-ftp worked perfectly.
So now I’ve got a quasi-complete computational chemistry workstation here. Just gotta get some molecular dynamics stuff on here — already got quantum covered, as far as free programs go.