--- trunk/installer-simple/Makefile	2014/01/03 13:18:57	2322
+++ trunk/installer-simple/Makefile	2014/01/03 13:42:10	2325
@@ -4,20 +4,20 @@
 
 DESTDIR=
 
-prefix=/usr
-libdir=$(prefix)/lib/installer
-bindir=$(prefix)/bin
+PREFIX = /usr
+LIBDIR = $(PREFIX)/lib/installer
+BINDIR = $(PREFIX)/bin
 
 all: install
 
 create-dirs:
-	install -d -m 0755 $(DESTDIR)/$(libdir)/functions
-	install -d -m 0755 $(DESTDIR)/$(bindir)
+	install -d -m 0755 $(DESTDIR)/$(LIBDIR)/functions
+	install -d -m 0755 $(DESTDIR)/$(BINDIR)
 
 install-files:
 	sed 's:%VERSIONTAG%:$(VERSION):' < bin/installer.sh.in > bin/installer.sh
-	install -m 0755 bin/installer.sh $(DESTDIR)$(bindir)/installer
-	install -m 0644 functions/findhdd.sh $(DESTDIR)$(libdir)/functions/
+	install -m 0755 bin/installer.sh $(DESTDIR)$(BINDIR)/installer
+	install -m 0644 functions/findhdd.sh $(DESTDIR)$(LIBDIR)/functions/
 
 install: create-dirs \
 	install-files \