THAT is the correct error-message:
save_vel.o(.text+0xcd1): In function `MAIN__': : multiple definition of `MAIN__' main.o(.text+0x0): first defined here /usr/lib/gcc-lib/i686-pc-linux-gnu/3.2.3/../../../../i686-pc-linux-gnu/bin/ld: Warning: size of symbol `MAIN__' changed from 5155 in main.o to 5 in save_vel.o save_pres.o(.text+0x763): In function `MAIN__': : multiple definition of `MAIN__' main.o(.text+0x0): first defined here collect2: ld returned 1 exit status make: *** [calc_les_03_cube] Error 1
Ah, this is a slightly different problem. Somehow, g77 thinks there is a main program in the file save_vel.f - this can happen if you have a single (extraneous) END statement for instance.
If you can't find the problem, send me (and only me - not the list) the whole file save_vel.f and I'll take a look.
Cheers,
-- Toon Moene - mailto:toon@xxxxxxxxxxxxxxxxxxxx - phoneto: +31 346 214290 Saturnushof 14, 3738 XG Maartensdijk, The Netherlands Maintainer, GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html GNU Fortran 95: http://gcc.gnu.org/fortran/ (under construction)