update README in m4/

diff --git a/m4/README b/m4/README
index a1ae40b36e9408de0f848823e0bfd3af392b9f89..a776138190e4b61df52ac5b3dff15a4834ee2f58 100644 (file)
--- a/m4/README
+++ b/m4/README
@@ -1,3 +1,6 @@
 The files: iconv.m4 lib-ld.m4  lib-link.m4  lib-prefix.m4
-were obtained from gettext-0.11.4-5 sources and are used in graphviz
-to define AM_ICONV without requiring that gettext be installed.
+were obtained from gettext-0.11.4-5 sources.
+
+The file: glib-gettext.m4 was obtained from glib2-devel (go figure!)
+
+They are used in graphviz to avoid requiring gettext be installed.