# makefile for libpng, SGI IRIX with gcc
# Copyright (C) 2002 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

# Where the zlib library and include files are located
ZLIBLIB=/usr/local/lib32
ZLIBINC=/usr/local/include
#ZLIBLIB=../zlib
#ZLIBINC=../zlib

# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
# See "man abi".  zlib must be built with the same ABI.
ABI=

CC=gcc

WARNMORE= # -g -DPNG_DEBUG=5
CFLAGS=$(ABI) -I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32
LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
LDSHARED=CC $(ABI) -shared

PNGMAJ = 0
PNGMIN = 1.2.2beta3
PNGVER = $(PNGMAJ).$(PNGMIN)
# See "man dso" for info about shared objects
LIBS=libpng12.so.$(PNGMAJ).$(PNGVER)
LIBNAME=libpng12
LIBPATH=$(prefix)/lib32

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.a $(LIBNAME).so.$(PNGVER) pngtest

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

$(LIBNAME).so.$(PNGVER): $(OBJS)
	$(LDSHARED) -o $@ $(OBJS)
	rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
	ln -s $@ $(LIBNAME).so
	ln -s $@ $(LIBNAME).so.$(PNGMAJ)

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

test: pngtest
	./pngtest


install-headers: png.h pngconf.h
	-@if [ ! -d $(INCPATH) ]; then mkdir $(INCPATH); fi
	-@if [ ! -d $(INCPATH)/$(LIBNAME) ]; then mkdir $(INCPATH)/$(LIBNAME); fi
	cp png.h pngconf.h $(INCPATH)/$(LIBNAME)
	chmod 644 $(INCPATH)/$(LIBNAME)/png.h $(INCPATH)/$(LIBNAME)/pngconf.h
	-@/bin/rm -f $(INCPATH)/png.h $(INCPATH)/pngconf.h
	ln -f -s $(INCPATH)/$(LIBNAME)/png.h $(INCPATH)
	ln -f -s $(INCPATH)/$(LIBNAME)/pngconf.h $(INCPATH)

install-static: install-headers libpng.a
	-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
	cp libpng.a $(LIBPATH)/$(LIBNAME).a
	chmod 644 $(LIBPATH)/$(LIBNAME).a
	-@/bin/rm -f $(LIBPATH)/libpng.a
	ln -f -s $(LIBPATH)/$(LIBNAME).a $(LIBPATH)/libpng.a

install-shared: install-headers $(LIBNAME).so.$(PNGVER)
	-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
	-@/bin/rm -f $(LIBPATH)/libpng.so.3*
	cp $(LIBNAME).so.$(PNGVER) $(LIBPATH)
	chmod 755 $(LIBPATH)/$(LIBNAME).so.$(PNGVER)
	-@/bin/rm -f $(LIBPATH)/$(LIBNAME).so.$(PNGMAJ)* $(LIBPATH)/$(LIBNAME).so
	(cd $(LIBPATH);
	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
	-@if [ ! -d $(LIBPATH)/pkgconfig ]; then mkdir $(LIBPATH)/pkgconfig; fi
	cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
	cp libpng.pc $(LIBPATH)/pkgconfig/libpng12.pc
	chmod 644 $(LIBPATH)/pkgconfig/libpng12.pc

install: install-static install-shared

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

# 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