build: Bump gettext version

Apparently, gettext can only work with the same exact version it's
autogenerated from.

diff --git a/configure.ac b/configure.ac
index a26ac97..69cf1e1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1093,7 +1093,7 @@ AM_CONDITIONAL(ENABLE_PDFS, [test "x$enable_pdfs" = "xyes"])
 
 dnl === I18N ==================================================================
 
-AM_GNU_GETTEXT_VERSION([0.17])
+AM_GNU_GETTEXT_VERSION([0.18.1])
 AM_GNU_GETTEXT([external])
 
 GETTEXT_PACKAGE="clutter-$CLUTTER_API_VERSION"