Update Makefile

Makefile

@@ -1,4 +1,36 @@
-vernam: vernam.c
-	gcc -o vernam vernam.c
-all:
-	vernam
+.POSIX:
+.SUFFIXES:
+
+VERSION = 1.0
+TARGET = vernam
+PREFIX ?= /usr/local
+BINDIR = $(PREFIX)/bin
+
+CFLAGS = -O3 -march=native -mtune=native -pipe -s -std=c99 -pedantic -Wall
+
+SRC = vernam.c
+
+$(TARGET): $(SRC)
+	$(CC) $(SRC) -o $@ $(CFLAGS) $(LDFLAGS)
+
+dist:
+	mkdir -p $(TARGET)-$(VERSION)
+	cp -R README.md $(TARGET) $(TARGET)-$(VERSION)
+	tar -cf $(TARGET)-$(VERSION).tar $(TARGET)-$(VERSION)
+	gzip $(TARGET)-$(VERSION).tar
+	rm -rf $(TARGET)-$(VERSION)
+
+install: $(TARGET)
+	mkdir -p $(DESTDIR)$(BINDIR)
+	cp -p $(TARGET) $(DESTDIR)$(BINDIR)/$(TARGET)
+	chmod 755 $(DESTDIR)$(BINDIR)/$(TARGET)
+
+uninstall:
+	rm $(DESTDIR)$(BINDIR)/$(TARGET)
+
+clean:
+	rm $(TARGET)
+
+all: $(TARGET)
+
+.PHONY: all dist install uninstall clean