Hello, > includedir='/usr/include/mylib' I believe it's safer to use your own prefix. Put this to your Makefile.am: mylib_headersdir = /usr/include/mylib mylib_headers_HEADERS = ... Does this help? Regards, Stepan Kasal _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf