On Tue, Jun 14, 2005 at 01:11:55PM +0200, Harald Dunkel wrote: > Why am I not allowed to call AC_CANONICAL_HOST twice? Its definition uses AC_DEFUN_ONCE. If we let the macro expand twice, `--host' would appear in help output twice. Feel welcome to post a patch eliminating that limitation. > If I try, then I get several lines like > > configure.ac:160: warning: AC_CANONICAL_HOST invoked multiple times > > Is there some kind of "if-statement" possible to avoid > this warning? If you currently call AC_CANONICAL_HOST from one of your own macros, replace those calls with `AC_REQUIRE([AC_CANONICAL_HOST])'. If you call it from the top level, defun a macro that makes that call and then call your macro. Like this: AC_DEFUN([some_name], [AC_REQUIRE([AC_CANONICAL_HOST])]) some_name _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
