From 5291aa174c65d182116f8879ff6a124bae14a21a Mon Sep 17 00:00:00 2001
From: ueno <ueno>
Date: Mon, 25 Mar 2002 12:01:40 +0000
Subject: [PATCH] Use ?= to set variables which may be imported from
 upper-level Makefiles.

---
 lisp/Makefile.lisp |   35 +++++++++++++----------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

diff --git a/lisp/Makefile.lisp b/lisp/Makefile.lisp
index 2e8ab50..fce2a66 100644
--- a/lisp/Makefile.lisp
+++ b/lisp/Makefile.lisp
@@ -1,27 +1,18 @@
 PACKAGE	= liece
 VERSION	= 1.4.7
 
-ifndef EMACS
-	EMACS	= emacs
-endif
-ifndef XEMACS
-	XEMACS	= xemacs
-endif
-FLAGS	= -batch -q -no-site-file
-TAR	= tar
-
-ifndef PREFIX
-	PREFIX	= NONE
-endif
-ifndef LISPDIR
-	LISPDIR	= NONE
-endif
-PACKAGEDIR = NONE
-VERSION_SPECIFIC_LISPDIR = NONE
-
-GOMI     = liece-setup.el *.elc
-
-all: elc
+EMACS ?= emacs
+XEMACS ?= xemacs
+FLAGS ?= -batch -q -no-site-file
+TAR ?= tar
+PREFIX ?= NONE
+LISPDIR	?= NONE
+PACKAGEDIR ?= NONE
+VERSION_SPECIFIC_LISPDIR ?= NONE
+
+GOMI = liece-setup.el *.elc
+
+all:: elc
 
 elc: 
 	$(EMACS) $(FLAGS) -l ./liece-make.el -f autoload-liece \
@@ -43,5 +34,5 @@ install-package: package
 	$(XEMACS) $(FLAGS) -l ./liece-make.el -f install-liece-package \
 		$(PACKAGEDIR)
 
-clean:
+clean::
 	-rm -f $(GOMI)
-- 
1.7.10.4