configure: Explicitely configure Gettext

From version 0.25, Gettext will complain about not calling autopoints to
set up all required macros required by autoconf later on.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/configure.ac b/configure.ac
index 512f5ffb620b69e126ea118fd401242a46e1543e..d5009ceb8480a2272e13eead387c17d952a2aba0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,6 +42,9 @@ AM_INIT_AUTOMAKE([
 ])
 AM_SILENT_RULES([yes])
 
+AM_GNU_GETTEXT_VERSION(0.21)
+AM_GNU_GETTEXT([external])
+
 IT_PROG_INTLTOOL([0.40.0])
 
 GETTEXT_PACKAGE=ddns