# makefile for libpng on DEC Alpha Unix
# Copyright (C) 2000 Glenn Randers-Pehrson
# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
# For conditions of distribution and use, see copyright notice in png.h

# where make install puts libpng.a and png.h
prefix=/usr/local
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib

# Where the zlib library and include files are located
#ZLIBLIB=/usr/local/lib
#ZLIBINC=/usr/local/include
ZLIBLIB=../zlib
ZLIBINC=../zlib

# read libpng.txt or png.h to see why PNGMAJ is 3.  You should not
# have to change it.
PNGMAJ = 3
PNGMIN = 1.2.0
PNGVER = $(PNGMAJ).$(PNGMIN)

CC=cc
CFLAGS=-std -w1 -I$(ZLIBINC) -O # -g -DPNG_DEBUG=1
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

#RANLIB=echo
RANLIB=ranlib

OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
	pngwtran.o pngmem.o pngerror.o pngpread.o

all: libpng.so libpng.a pngtest

libpng.a: $(OBJS)
	ar rc $@  $(OBJS)
	$(RANLIB) $@

libpng.so: libpng.so.$(PNGMAJ)
	ln -f -s libpng.so.$(PNGMAJ) libpng.so

libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
	ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)

libpng.so.$(PNGVER): $(OBJS)
	$(CC) -shared -o $@ $(OBJS) -L$(ZLIBLIB) -lz -lm

pngtest: pngtest.o libpng.a
	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

test: pngtest
	./pngtest

install: libpng.a libpng.so.$(PNGVER)
	-@mkdir $(INCPATH)
	-@mkdir $(LIBPATH)
	cp png.h $(INCPATH)
	cp pngconf.h $(INCPATH)
	chmod 644 $(INCPATH)/png.h
	chmod 644 $(INCPATH)/pngconf.h
	cp libpng.a $(LIBPATH)
	cp libpng.so.$(PNGVER) $(LIBPATH)
	chmod 644 $(LIBPATH)/libpng.a
	chmod 644 $(LIBPATH)/libpng.so.$(PNGVER)
	-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
	(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
	 ln -f -s libpng.so.$(PNGMAJ) libpng.so)

clean:
	rm -f *.o libpng.a pngtest pngout.png libpng.so*

# DO NOT DELETE THIS LINE -- make depend depends on it.

png.o: png.h pngconf.h
pngerror.o: png.h pngconf.h
pngrio.o: png.h pngconf.h
pngwio.o: png.h pngconf.h
pngmem.o: png.h pngconf.h
pngset.o: png.h pngconf.h
pngget.o: png.h pngconf.h
pngread.o: png.h pngconf.h
pngrtran.o: png.h pngconf.h
pngrutil.o: png.h pngconf.h
pngtest.o: png.h pngconf.h
pngtrans.o: png.h pngconf.h
pngwrite.o: png.h pngconf.h
pngwtran.o: png.h pngconf.h
pngwutil.o: png.h pngconf.h
pngpread.o: png.h pngconf.h