[gtksourceview] configure: add AM_GNU_GETTEXT_VERSION([0.17]) and AM_GNU_GETTEXT([external])

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 412fea8219daf4ba4eaef107587ded2b2e9348e1
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Mon Aug 8 20:01:08 2011 +0200

    configure: add AM_GNU_GETTEXT_VERSION([0.17]) and AM_GNU_GETTEXT([external])
    
    Without it ENABLE_NLS is not set in config.h so we don't get gsv translated.

 configure.ac |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c9eca0c..bfd51dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -120,6 +120,9 @@ AS_IF([ test "$glade_catalog" = "yes" ],
 # i18N stuff
 IT_PROG_INTLTOOL([0.40])
 
+AM_GNU_GETTEXT_VERSION([0.17])
+AM_GNU_GETTEXT([external])
+
 AC_SUBST([GETTEXT_PACKAGE], [gtksourceview-3.0])
 AC_DEFINE([GETTEXT_PACKAGE], [PACKAGE_TARNAME], [Define to the gettext package name.])