Cottonwood wrote: > I want to call a C module from a Fortran program. Whatever I tried - > the linker could not find the C module . . . > The result was always the same. With the Fortran subroutine linking > works, with one of the C modules I get the message > > qqmodlib.a(qqprint.o):qqprint.for:(.text+0x42): undefined reference to > `qqcprint' > > What am I doing wrong?
I'm on Windows XP and using GNU G95 (2003 standard) with the option -fno-underscoring and GNU C++ 4.9.9.2. Because I have no problem to call Fortran from C this can't ba a conflict with the names. Meanwhile I found out that the problem is not related to Fortran. Now I have this C main: extern "C" void qqcprint(); int main() { qqcprint(); return 0; } and my C routine is quite the same: extern void qqcprint() { return; } The module is in the project al well as in the linked modlib qqmodlib.a But the message I get is always [Linker error] undefined reference to `qqcprint'. The 'nm' program was not in the delivery. _______________________________________________ help-gplusplus mailing list help-gplusplus@gnu.org http://lists.gnu.org/mailman/listinfo/help-gplusplus