Switch from AM_PROG_MKDIR_P to AC_PROG_MKDIR_P to avoid automake warning.

Signed-off-by: Allan McRae <allan@archlinux.org>
---

It is advised to switch to using '$(MKDIR_P)' instead of '$(mkdir_p)' in Makefile.*
too. Our only use of this in the the "Makefile.in.in" files from gettext. As these
produce no warnings or errors yet, I think it best to wait on gettext to update these
files.

m4/po.m4 | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/po.m4 b/m4/po.m4
index 47f36a4..8bc921d 100644
--- a/m4/po.m4
+++ b/m4/po.m4
@@ -24,7 +24,7 @@ AC_DEFUN([AM_PO_SUBDIRS],
[
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AC_PROG_INSTALL])dnl
- AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
+ AC_REQUIRE([AC_PROG_MKDIR_P])dnl defined by autoconf
AC_REQUIRE([AM_NLS])dnl

dnl Release version of the gettext macros. This is used to ensure that
--
1.7.12