Hello, I have a fortran package but in some case I also need a C compiler to detect some C stuff to link with C libraries when there is no equivalent fortran library. I don't want a missing C compiler to lead to a configure failure, however. It is also an automake based package. The following doesn't work, if test $use_c_libraries_if_fortran_not_found = yes; then AC_PROG_CC .....test for C libraries fi I get configure: error: conditional "AMDEP" was never defined. Usually this means the macro was only invoked conditionally. There is no possibility of doing something conditionnaly on AC_PROG_CC failing, either, like what can be done with most other macros: AC_PROG_CC(,[.....test for C libraries], [c_compiler_found=no]) I think that one of those possibility (both?) should be available, and I think I favor AC_PROG_CC doing something when failing. By chance are you aware of a possible workaround? Pat _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf