I have 2 libraries, mylib1 and mylib2. mylib1 has no depencies. mylib2 depends on mylib1. I am using aclocal, autoheader, autoconf, automake, and libtoolize to build these libraries. I build mylib1 and do a make install. Then, I do a configure in mylib2 and on some platforms it can't find main in mylib1. Platforms that work: FC4, OS X 10.4 Platforms that don't work: RHEL3, MSYS, CYGWIN Right now I'm trying to make it work on RHEL3. mylib1 was put in /usr/local/lib. I added /usr/local/lib/to /etc/ld.so.conf and ran "sudo ldconfig -v" and verified that it saw my library (I've also rebooted). Also, if I type gcc -lmylib1 it sees it (gcc -lblahblahlibrary gives an error about blahblahlibrary not found, and that's not what gcc -lmylib1 errors with). So I know my library is in a place where at least some parts of the system are looking. Basically, mylib2's configure.ac is pretty straightforward with: AC_CHEC_LIB(mylib2, main, , AC_MSG_ERROR(mylib2 required)) I don't know what else to try. --Zac _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf