From cc48e628207fdf53157795987ee36aed3aad729a Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Thu, 2 Jan 2014 14:30:38 +0100
Subject: write version to header file

---
 .gitignore         |  1 +
 Makefile           | 21 +++++++++++----------
 mpd-notification.c |  1 +
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/.gitignore b/.gitignore
index 859d77e..5c59d97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 config.h
 mpd-notification
 README.html
+version.h
diff --git a/Makefile b/Makefile
index a6fa535..1d059c7 100644
--- a/Makefile
+++ b/Makefile
@@ -6,24 +6,25 @@ INSTALL	:= install
 CP	:= cp
 RM	:= rm
 CFLAGS	+= -O2 -Wall -Werror
-CFLAGS	+= $(shell pkg-config --cflags --libs libmpdclient) \
-	   $(shell pkg-config --cflags --libs libnotify)
-VERSION := $(shell git describe --tags --long 2>/dev/null)
+CFLAGS	+= $(shell pkg-config --cflags --libs libmpdclient)
+CFLAGS	+= $(shell pkg-config --cflags --libs libnotify)
 # this is just a fallback in case you do not use git but downloaded
 # a release tarball...
-ifeq ($(VERSION),)
 VERSION := 0.4.3
-endif
 
 all: mpd-notification README.html
 
-mpd-notification: mpd-notification.c config.h
-	$(CC) $(CFLAGS) -o mpd-notification mpd-notification.c \
-		-DVERSION="\"$(VERSION)\""
+mpd-notification: mpd-notification.c config.h version.h
+	$(CC) $(CFLAGS) -o mpd-notification mpd-notification.c
 
 config.h:
 	$(CP) config.def.h config.h
 
+version.h: $(wildcard .git/HEAD .git/index .git/refs/tags/*) Makefile
+	echo "#ifndef VERSION" > $@
+	echo "#define VERSION \"$(shell git describe --tags --long 2>/dev/null || echo ${VERSION})\"" >> $@
+	echo "#endif" >> $@
+
 README.html: README.md
 	$(MD) README.md > README.html
 
@@ -39,7 +40,7 @@ install-doc: README.html
 	$(INSTALL) -D -m0644 screenshot.png $(DESTDIR)/usr/share/doc/mpd-notification/screenshot.png
 
 clean:
-	$(RM) -f *.o *~ README.html mpd-notification
+	$(RM) -f *.o *~ README.html mpd-notification version.h
 
 distclean:
-	$(RM) -f *.o *~ README.html mpd-notification config.h
+	$(RM) -f *.o *~ README.html mpd-notification version.h config.h
diff --git a/mpd-notification.c b/mpd-notification.c
index 2d79d67..7ad3aa0 100644
--- a/mpd-notification.c
+++ b/mpd-notification.c
@@ -16,6 +16,7 @@
 #include <signal.h>
 
 #include "config.h"
+#include "version.h"
 
 #define PROGNAME	"mpd-notification"
 
-- 
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