# makefile for libpng

# Copyright (C) 2002, 2006, 2014 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

# where make install puts libpng.a and png.h

prefix=/usr/local

INCPATH=$(prefix)/include

LIBPATH=$(prefix)/lib

# 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=

# Where the zlib library and include files are located

#ZLIBLIB=/usr/local/lib

#ZLIBINC=/usr/local/include

ZLIBLIB=../zlib

ZLIBINC=../zlib

CC = cc

AR_RC = ar rc

MKDIR_P = mkdir

LN_SF = ln -sf

RANLIB = ranlib

CP = cp

RM_F = rm -f

AWK = awk

SED = sed

CPP = $(CC) -E

ECHO = echo

DFNFLAGS = # DFNFLAGS contains -D options to use in the libpng build

DFA_EXTRA = # extra files that can be used to control configuration

CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5

CFLAGS = -O # -g

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

# Pre-built configuration

# See scripts/pnglibconf.mak for more options

PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt

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

.c.o:

	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<

all: libpng.a pngtest

# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,

# copy this if the following doesn't work.

pnglibconf.h: pnglibconf.dfn

	$(RM_F) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp

	$(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c

	$(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2

	$(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out

	$(AWK) -f "scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2

	mv pnglibconf.tmp $@

pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)

	$(RM_F) $@ pnglibconf.pre pnglibconf.tmp

	$(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2

	$(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2

	$(AWK) -f scripts/options.awk out="pnglibconf.pre"\

	    version=search pngconf.h scripts/pnglibconf.dfa\

	    pngusr.dfa $(DFA_XTRA) 1>&2

	$(AWK) -f scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2

	mv pnglibconf.tmp $@

libpng.a: $(OBJS)

	$(AR_RC) $@  $(OBJS)

	$(RANLIB) $@

pngtest: pngtest.o libpng.a

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

test: pngtest

	./pngtest

install: libpng.a pnglibconf.h

	-@$(MKDIR_P) $(DESTDIR)$(INCPATH)

	-@$(MKDIR_P) $(DESTDIR)$(INCPATH)/libpng

	-@$(MKDIR_P) $(DESTDIR)$(LIBPATH)

	-@$(RM_F) $(DESTDIR)$(INCPATH)/png.h

	-@$(RM_F) $(DESTDIR)$(INCPATH)/pngconf.h

	-@$(RM_F) $(DESTDIR)$(INCPATH)/pnglibconf.h

	cp png.h $(DESTDIR)$(INCPATH)/libpng

	cp pngconf.h $(DESTDIR)$(INCPATH)/libpng

	cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng

	chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h

	chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h

	chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h

	(cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)

	cp libpng.a $(DESTDIR)$(LIBPATH)

	chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a

clean:

	$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \

	pnglibconf.out

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.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h

pngtest.o: png.h pngconf.h pnglibconf.h