Make portable Makefile

GNUmakefile → Makefile

@@ -1,7 +1,9 @@
 BIN	= xhash
+BINDIR	= $(HOME)/bin
+INSTALL:sh = type -p ginstall || type -p install
 
 # Optionally create these hard-links
-ALL	= b2sum b3sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum
+ALL	= b2sum b3sum md5sum sha1sum sha256sum sha512sum
 
 .PHONY: all
 all:	$(BIN)
@@ -29,20 +31,13 @@ gen:
 	@go mod init $(BIN)
 	@go mod tidy
 
-euid	= $(shell id -u)
-ifeq ($(euid),0)
-BINDIR	= /usr/local/bin
-else
-BINDIR	= $(HOME)/bin
-endif
-
 .PHONY: install
 install: $(BIN)
-	@install -s -m 0755 $(BIN) $(BINDIR)
+	$(INSTALL) -s -m 0755 $(BIN) $(BINDIR)
 
 .PHONY: uninstall
 uninstall:
-	@rm -f $(BINDIR)/$(BIN)
+	rm -f $(BINDIR)/$(BIN)
 
 $(ALL):	$(BIN)
 	@for f in $(ALL) ; do ln -f $(BIN) $$f ; done
@@ -52,8 +47,8 @@ ALL:	$(ALL)
 
 .PHONY: install-all
 install-all: $(ALL)
-	@for f in $(ALL) ; do install -m 0755 $$f $(BINDIR) ; done
+	for f in $(ALL) ; do $(INSTALL) -s -m 0755 $$f $(BINDIR) ; done
 
 .PHONY: uninstall-all
 uninstall-all:
-	@for f in $(ALL) ; do rm -vf $(BINDIR)/$$f ; done
+	for f in $(ALL) ; do rm -f $(BINDIR)/$$f ; done