# makefile for libpng on Darwin / Mac OS X
# Copyright (C) 2001 Christoph Pfisterer
# derived from makefile.linux:
#  Copyright (C) 1998, 1999 Greg Roelofs
#  Copyright (C) 1996, 1997 Andreas Dilger
# For conditions of distribution and use, see copyright notice in png.h

# where "make install" puts libpng.a, libpng.dylib, png.h and pngconf.h
prefix=/usr/local

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

CC=cc
CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops
LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz

#RANLIB=echo
RANLIB=ranlib

# read libpng.txt or png.h to see why PNGMAJ is 3.  You should not
# have to change it.
PNGMAJ = 3
PNGMIN = 1.2.1rc1
PNGVER = $(PNGMAJ).$(PNGMIN)

INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib

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

OBJSDLL = $(OBJS:.o=.pic.o)

.SUFFIXES:      .c .o .pic.o

.c.pic.o:
	$(CC) -c $(CFLAGS) -fno-common -o $@ $*.c

all: libpng.a libpng.dylib pngtest

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

libpng.dylib: libpng.$(PNGMAJ).dylib
	ln -sf libpng.$(PNGMAJ).dylib libpng.dylib

libpng.$(PNGMAJ).dylib: libpng.$(PNGVER).dylib
	ln -sf libpng.$(PNGVER).dylib libpng.$(PNGMAJ).dylib

libpng.$(PNGVER).dylib: $(OBJSDLL)
	$(CC) -dynamiclib -undefined suppress \
	 -install_name $(LIBPATH)/libpng.$(PNGMAJ).dylib \
	 -current_version $(PNGMIN) -compatibility_version $(PNGMIN) \
	 -o libpng.$(PNGVER).dylib \
	 $(OBJSDLL) -L$(ZLIBLIB) -lz

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

test: pngtest
	./pngtest

install: libpng.a libpng.dylib
	-@if [ ! -d $(INCPATH)  ]; then mkdir $(INCPATH); fi
	-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
	cp png.h pngconf.h $(INCPATH)
	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
	cp libpng.a libpng.$(PNGVER).dylib $(LIBPATH)
	chmod 755 $(LIBPATH)/libpng.$(PNGVER).dylib
	ranlib $(LIBPATH)/libpng.a
	-@/bin/rm -f $(LIBPATH)/libpng.$(PNGMAJ).dylib $(LIBPATH)/libpng.dylib
	(cd $(LIBPATH); ln -sf libpng.$(PNGVER).dylib libpng.$(PNGMAJ).dylib; \
	 ln -sf libpng.$(PNGMAJ).dylib libpng.dylib)

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

DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
	chmod a-w *.[ch35] $(DOCS) scripts/*

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

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

pngtest.o: png.h pngconf.h