From 1a7c70f44b496134a2d5e5236d072615ccd918a3 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Thu, 2 Jan 2014 14:02:45 +0100
Subject: wirte version to header file

---
 .gitignore |  1 +
 Makefile   | 17 +++++++++--------
 cqrlogo.c  |  1 +
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/.gitignore b/.gitignore
index 6efd070..b836954 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ config.h
 cqrlogo
 *.png
 README.html
+version.h
diff --git a/Makefile b/Makefile
index ccacb99..07911d1 100644
--- a/Makefile
+++ b/Makefile
@@ -15,18 +15,19 @@ CFLAGS	+= -liniparser
 CFLAGS	+= $(shell pkg-config --cflags --libs libpng)
 CFLAGS	+= $(shell pkg-config --cflags --libs zlib)
 CFLAGS	+= $(shell pkg-config --cflags --libs libqrencode)
-VERSION := $(shell git describe --tags --long 2>/dev/null)
 # this is just a fallback in case you do not use git but downloaded
 # a release tarball...
-ifeq ($(VERSION),)
 VERSION := 0.3.5
-endif
 
 all: cqrlogo README.html cqrlogo.png
 
-cqrlogo: cqrlogo.c config.h
-	$(CC) $(CFLAGS) $(LDFLAGS) -o cqrlogo cqrlogo.c \
-		-DVERSION="\"$(VERSION)\""
+cqrlogo: cqrlogo.c config.h version.h
+	$(CC) $(CFLAGS) $(LDFLAGS) -o cqrlogo cqrlogo.c
+
+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" >> $@
 
 config.h:
 	$(CP) config.def.h config.h
@@ -142,7 +143,7 @@ check:
 		$(GREP) -e '^This QR Code has been stolen from https://eworm.net/!$$'
 
 clean:
-	$(RM) -f *.o *~ *.png README.html cqrlogo
+	$(RM) -f *.o *~ *.png README.html cqrlogo version.h
 
 distclean:
-	$(RM) -f *.o *~ *.png README.html cqrlogo config.h
+	$(RM) -f *.o *~ *.png README.html cqrlogo version.h config.h
diff --git a/cqrlogo.c b/cqrlogo.c
index 9ad2a19..4121b20 100644
--- a/cqrlogo.c
+++ b/cqrlogo.c
@@ -17,6 +17,7 @@
 #include <qrencode.h>
 
 #include "config.h"
+#include "version.h"
 
 /* define structs and functions */
 #include "cqrlogo.h"
-- 
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