On Mon, 2003-12-29 at 14:08, Toon Moene wrote: > Fabian Braennstroem wrote: > > Hello, > > > > I am still trying to adjust an sgi-fortran-code to linux g77. I get > > this error-message: > > > > main.o(.text+0x10c3): In function `MAIN__': > > : undefined reference to `save_vel__' > > main.o(.text+0x10d2): In function `MAIN__': > > : undefined reference to `save_pres__' > > collect2: ld returned 1 exit status > > make: *** [calc_les_03_cube] Error 1 > > 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 > Did you compile save_vel.f and save_pres.f with g77 as well ? > > Note that g77 appends two underscores to the name of a subroutine that > contains an underscore. > > If you just assume the loader will get save_vel and save_pres from a > library compiled with another compiler that doesn't append the extra > underscore, you're out of luck. > > Anyways, don't assume g77-compiled code and code compiled with another > compiler on your SGI machine will work together flawlessly, even if the > loader phase succeeds ... > Thanks for the tips, but all subroutines were compiled with g77 under linux. When I copy the subroutine save_vel into 'main.f', the compilation works fine. Why? Is it a 'makefile'-mistake? Greetings! Fabian
