From: Antonio Ospite <ospite@studenti.unina.it>
Date: Fri, 24 Oct 2008 10:54:24 +0000 (+0200)
Subject: TopGit: small Makefile nitpichink
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topgit.git;a=commitdiff_plain;h=994cab188cba4f990cabc88e3ec804899a26e848;hp=1651bde1e53f88c7f51a6cad2431b689d843a273

TopGit: small Makefile nitpichink

Make 'prefix' replacement more explicit using ?=

Use simple substitution assignment := when there are some expansions in
place.  This is a good practice to speed up builds, maybe not particularly
useful with such a simple Makefile.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
---

diff --git a/Makefile b/Makefile
index 2c627af..3ce39a5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,16 @@
-prefix = $(HOME)
-bindir = $(prefix)/bin
-cmddir = $(prefix)/libexec/topgit
-sharedir = $(prefix)/share/topgit
-hooksdir = $(cmddir)/hooks
+prefix ?= $(HOME)
+bindir := $(prefix)/bin
+cmddir := $(prefix)/libexec/topgit
+sharedir := $(prefix)/share/topgit
+hooksdir := $(cmddir)/hooks
 
 
-commands_in = $(wildcard tg-*.sh)
+commands_in := $(wildcard tg-*.sh)
 hooks_in = hooks/pre-commit.sh
 
-commands_out = $(patsubst %.sh,%,$(commands_in))
-hooks_out = $(patsubst %.sh,%,$(hooks_in))
-help_out = $(patsubst %.sh,%.txt,$(commands_in))
+commands_out := $(patsubst %.sh,%,$(commands_in))
+hooks_out := $(patsubst %.sh,%,$(hooks_in))
+help_out := $(patsubst %.sh,%.txt,$(commands_in))
 
 all::	tg $(commands_out) $(hooks_out) $(help_out)