X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topgit.git;a=blobdiff_plain;f=Makefile;h=3ce39a5633f4a7bab6b3835f6169d1b23e78cefd;hp=2c627afbaab085c72f58257399edca8da4d77fb5;hb=994cab188cba4f990cabc88e3ec804899a26e848;hpb=1651bde1e53f88c7f51a6cad2431b689d843a273

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)