[gnome-characters] build: Ignore installed M4 files

[Daiki Ueno <dueno src gnome org>]

commit ef77ea385ee541b7bc515ce89d086c3cd58b8770
Author: Daiki Ueno <dueno src gnome org>
Date:   Wed Oct 7 12:21:27 2015 +0900

    build: Ignore installed M4 files

 Makefile.am |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 7ac3788..9aa4bd6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -24,6 +24,11 @@ GITIGNOREFILES = \
        m4/intltool.m4 \
        m4/libtool.m4 \
        m4/lt* \
+       m4/appstream-xml.m4 \
+       m4/gsettings.m4 \
+       m4/introspection.m4 \
+       m4/nls.m4 \
+       m4/pkg.m4 \
        gllib/Makefile \
        gllib/Makefile.in \
        gllib/**/*.lo \