From 05613124ce46f30ea1580ecd7f94839f67366db9 Mon Sep 17 00:00:00 2001
From: Philipp Matthias Hahn <pmhahn@pmhahn.de>
Date: Wed, 11 Jan 2012 23:14:24 +0100
Subject: [PATCH] Compute version only once

In a make-file the =-assignment is replaced textually each time it is
referenced, which leads to the shell fragments to be executed each time.
Use the :=-assignment instead, which computes the value only once.

Signed-off-by: Andrew McMillan <andrew@morphoss.com>
---
 Makefile | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index e0f560bc..56002fc7 100755
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,11 @@
 #!/usr/bin/make -f
 #
 
-package=davical
-majorversion = $(shell sed -n 's:\([0-9\.]*\)[-a-f0-9-]*:\1:p' VERSION)
-gitrev = 0
-version = $(majorversion)
-issnapshot = 0
+package := davical
+majorversion := $(shell sed -n 's:\([0-9\.]*\)[-a-f0-9-]*:\1:p' VERSION)
+gitrev := 0
+version := $(majorversion)
+issnapshot := 0
 snapshot : gitrev = $(shell git rev-parse --short HEAD)
 snapshot : version = $(majorversion)-git$(gitrev)
 snapshot : issnapshot = 1