gccNewbie writes: > > > Andrew Haley-5 wrote: > > > > Yes. The command is called "nm". > > > > Thanks. It seems to often happen that what you are looking for is in the > last place you look. Usually you ask for help online just before looking in > that last place, too. I discovered nm mere minutes after asking my question. > > Unfortunately, nm merely confirmed what I already knew. It has some rather > complicated output, but the names of these so-called undefined functions are > in the library, right next to a T which should mean that the library > provides a definition of these functions. > > So it is really a very simple riddle. 'gcc -lmylib mysource.c' uses a > function 'foo' which nm shows is defined in libmylib.a. gcc does not > complain about not being able to find mylib, but it does complain that 'foo' > is an 'undefined reference'. In what situation could that happen? Maybe link ordering, maybe link paths. if it's link ordering, 'gcc -lmylib mysource.c -lmylib' will fix it. If it's link paths, you need '-L.' If neither of those work, we need to start debugging. Andrew.
