From efe2bad59043ab0489a1cc2daf227713a50b6ccc Mon Sep 17 00:00:00 2001
From: Emanuele Giaquinta <exg@irssi.org>
Date: Sat, 15 Nov 2008 16:47:31 +0000
Subject: [PATCH] Do not update the version file if it is unchanged.

git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@4908 dbcabf3a-b0e7-0310-adc4-f8d773084564
---
 Makefile.am | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile.am b/Makefile.am
index cbe147be..d8b54d72 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,7 +10,9 @@ default-config.h: $(srcdir)/irssi.conf
 default-theme.h: $(srcdir)/default.theme
 	$(srcdir)/file2header.sh $(srcdir)/default.theme default_theme > default-theme.h
 irssi-version.h:
-	$(srcdir)/irssi-version.sh $(srcdir) > $@
+	$(srcdir)/irssi-version.sh $(srcdir) > $@.tmp
+	cmp -s $@.tmp $@ || mv $@.tmp $@
+	rm -f $@.tmp
 
 SUBDIRS = src docs scripts