The reason why I'm asking this is that I wrote some macros that rely on
Libtool's magic handling of -R and even though it's clearly stated in
the doc/comments/README that Libtool is mandatory, people keep running
in troubles because they didn't use Libtool, so I'd like to trigger an
error, somehow, to tell them that they did something wrong.
You can use m4_provide_if like this:
m4_define([m4_provided], [
m4_provide_if([AC_PROG_LIBTOOL], [], [
m4_provide_if([LT_INIT], [],
[m4_warn([syntax], [Libtool required by $1])])])])])
...
m4_provided([MY_MACRO_NAME])
I didn't count the number of closing brackets.
Paolo
_______________________________________________
http://lists.gnu.org/mailman/listinfo/libtool
