add Makefile

Makefile

@@ -0,0 +1,36 @@
+DESTDIR?=/
+SHELL = /bin/sh
+CC?=gcc
+CFLAGS=-Wall -Wextra -Wwrite-strings -O -g 
+INSTALL = /usr/bin/install -c
+INSTALLDATA = /usr/bin/install -c -m 644
+PROGNAME = nbimg
+
+srcdir = .
+prefix = $(DESTDIR)
+bindir = $(prefix)/usr/bin
+docdir = $(prefix)/usr/share/doc
+mandir = $(prefix)/usr/share/man
+
+all: nbimg win32
+
+nbimg: nbimg.c
+	$(CC) $< $(CFLAGS) -o $@
+
+win32:
+	i586-mingw32msvc-gcc $(CFLAGS) $(PROGNAME).c -o $(PROGNAME).exe	
+
+install: all
+	mkdir -p $(bindir)
+	$(INSTALL) $(PROGNAME) $(bindir)/$(PROGNAME)
+	mkdir -p $(docdir)/$(PROGNAME)/
+	$(INSTALLDATA) $(srcdir)/README.md $(docdir)/$(PROGNAME)/
+	$(INSTALLDATA) $(srcdir)/LICENSE $(docdir)/$(PROGNAME)/
+
+uninstall:
+	rm -rf $(bindir)/$(PROGNAME)
+	rm -rf $(docdir)/$(PROGNAME)/
+
+
+clean:
+	rm -f *.o $(PROGNAME) $(PROGNAME).exe