Add Makefile

Makefile

@@ -0,0 +1,25 @@
+.POSIX:
+.SUFFIXES:
+
+GO ?= go
+RM ?= rm
+GOFLAGS ?=
+PREFIX ?= /usr/local
+BINDIR ?= bin
+
+all: sif
+
+sif: 
+	$(GO) build $(GOFLAGS) ./cmd/sif
+
+clean:
+	$(RM) -rf sif
+
+install:
+	mkdir -p $(DESTDIR)$(PREFIX)/$(BINDIR)
+	cp -f sif $(DESTDIR)$(PREFIX)/$(BINDIR)
+
+uninstall:
+	$(RM) $(DESTDIR)$(PREFIX)/$(BINDIR)/sif
+
+.PHONY: all sif clean install uninstall