# Currently depends on GNU make, because:
# - the Makefile uses GNU ifdef / ifndef commands and GNU make `%'
# pattern rules
+# - we use .PHONY
prefix=/usr/local
exec_prefix=$(prefix)
bindir=$(exec_prefix)/bin
INSTALL=install -c
+.PHONY: all install clean spotless topclean release
+
ifdef RELEASE
ifndef VERSION
VERSION := $(RELEASE)