* automake.in (get_object_extension): The extension to use is know by the caller, and cannot be selected by looking only at the target name. Simplify this function to simply conditionally prepend $U to the given extension. (handle_programs, handle_libraries, handle_ltlibraries): Hard-code the extension to use. This way Automake won't mistake a program named `foo.la' as a libtool library. * tests/primary3.test: New file. * tests/Makefile.am (TESTS): Add primary3.test.