# Copyright (C) 2001-2002, 2006 Glenn Randers-Pehrson

# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.

# This code is released under the libpng license.

# For conditions of distribution and use, see the disclaimer

# and license in png.h

# Library name:

PNGVER = $(PNGMAJ).$(PNGMIN)

# Shared library names:

LIBSO=$(LIBNAME).so

LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)

LIBSOVER=$(LIBNAME).so.$(PNGVER)

OLDSO=libpng.so

# Utilities:

AR_RC=ar rc

CC=gcc

MKDIR_P=mkdir -p

LN_SF=ln -sf

RANLIB=echo

RM_F=/bin/rm -f

# Prefix must be a full pathname.

prefix=/usr/local

exec_prefix=$(prefix)

# Where the zlib library and include files are located

#ZLIBLIB=/usr/local/lib32

#ZLIBINC=/usr/local/include

#ZLIBLIB=/usr/local/lib

#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=

WARNMORE= # -g -DPNG_DEBUG=5

LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm

LDSHARED=cc $(ABI) -shared -soname $(LIBSOMAJ) \

  -set_version sgi$(PNGMAJ).0

LDLEGACY=cc $(ABI) -shared -soname $(OLDSOMAJ) \

  -set_version sgi$3.0

# See "man dso" for info about shared objects

INCPATH=$(prefix)/include

LIBPATH=$(exec_prefix)/lib

#LIBPATH=$(exec_prefix)/lib32

MANPATH=$(prefix)/man

BINPATH=$(exec_prefix)/bin

# override DESTDIR= on the make install command line to easily support

# installing into a temporary location.  Example:

#

#    make install DESTDIR=/tmp/build/libpng

#

# If you're going to install into a temporary location

# via DESTDIR, $(DESTDIR)$(prefix) must already exist before

# you execute make install.

DESTDIR=

DB=$(DESTDIR)$(BINPATH)

DI=$(DESTDIR)$(INCPATH)

DL=$(DESTDIR)$(LIBPATH)

DM=$(DESTDIR)$(MANPATH)

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 pngtest shared libpng.pc libpng-config

libpng.a: $(OBJS)

	$(AR_RC) $@ $(OBJS)

	$(RANLIB) $@

shared: $(LIBSOVER)

libpng.pc:

	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \

	-e s!@exec_prefix@!$(exec_prefix)! \

	-e s!@libdir@!$(LIBPATH)! \

	-e s!@includedir@!$(INCPATH)! \

libpng-config:

	( cat scripts/libpng-config-head.in; \

	echo prefix=\"$(prefix)\"; \

	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \

	echo ccopts=\"$(ABI)\"; \

	echo ldopts=\"$(ABI)\"; \

	echo L_opts=\"-L$(LIBPATH)\"; \

	echo libdir=\"$(LIBPATH)\"; \

	cat scripts/libpng-config-body.in ) > libpng-config

	chmod +x libpng-config

$(LIBSO): $(LIBSOMAJ)

	$(LN_SF) $(LIBSOMAJ) $(LIBSO)

$(LIBSOMAJ): $(LIBSOVER)

	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)

$(LIBSOVER): $(OBJS)

	$(LDSHARED) -o $@ $(OBJS)

	$(RM_F) $(LIBSO) $(LIBSOMAJ)

$(OLDSOVER): $(OBJS)

	$(LDLEGACY) -o $@ $(OBJS)

pngtest: pngtest.o libpng.a

	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

test: pngtest

	echo

	echo Testing local static library.

	./pngtest

install-headers: png.h pngconf.h

	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi

	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi

	cp png.h pngconf.h $(DI)/$(LIBNAME)

	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h

	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h

	-@$(RM_F) $(DI)/libpng

	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)

install-static: install-headers libpng.a

	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi

	cp libpng.a $(DL)/$(LIBNAME).a

	chmod 644 $(DL)/$(LIBNAME).a

	-@$(RM_F) $(DL)/libpng.a

	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

install-shared: install-headers $(LIBSOVER) libpng.pc \

	$(OLDSOVER)

	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi

	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)

	-@$(RM_F) $(DL)/$(LIBSOMAJ)

	-@$(RM_F) $(DL)/$(OLDSO)

	-@$(RM_F) $(DL)/$(OLDSOMAJ)

	-@$(RM_F) $(DL)/$(OLDSOVER)*

	cp $(LIBSOVER) $(DL)

	cp $(OLDSOVER) $(DL)

	chmod 755 $(DL)/$(LIBSOVER)

	chmod 755 $(DL)/$(OLDSOVER)

	(cd $(DL); \

	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \

	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \

	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \

	$(LN_SF) $(LIBSOMAJ) $(LIBSO))

	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi

	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc

	-@$(RM_F) $(DL)/pkgconfig/libpng.pc

	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc

	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc

	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)

install-man: libpng.3 libpngpf.3 png.5

	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi

	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi

	-@$(RM_F) $(DM)/man3/libpng.3

	-@$(RM_F) $(DM)/man3/libpngpf.3

	cp libpng.3 $(DM)/man3

	cp libpngpf.3 $(DM)/man3

	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi

	-@$(RM_F) $(DM)/man5/png.5

	cp png.5 $(DM)/man5

install-config: libpng-config

	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi

	-@$(RM_F) $(DB)/libpng-config

	-@$(RM_F) $(DB)/$(LIBNAME)-config

	cp libpng-config $(DB)/$(LIBNAME)-config

	chmod 755 $(DB)/$(LIBNAME)-config

	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)

install: install-static install-shared install-man install-config

# If you installed in $(DESTDIR), test-installed won't work until you

# move the library to its final location.  Use test-dd to test it

# before then.

test-dd:

	echo

	echo Testing installed dynamic shared library in $(DL).

	$(CC) -I$(DI) -I$(ZLIBINC) \

	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \

	   -L$(DL) -L$(ZLIBLIB) \

           -rpath $(ZLIBLIB):$(DL) \

	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`

	./pngtestd pngtest.png

test-installed:

	echo

	echo Testing installed dynamic shared library.

	$(CC) -I$(ZLIBINC) \

	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \

	   -L$(ZLIBLIB) \

           -rpath $(ZLIBLIB):`$(BINPATH)/$(LIBNAME)-config --libdir` \

	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`

	./pngtesti pngtest.png

clean:

	$(RM_F) libpng.a pngtest pngtesti pngout.png libpng.pc \

        so_locations libpng-config $(LIBSO) $(LIBSOMAJ)* $(OLDSOVER)

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.

pngtest.o: png.h pngconf.h