src/png/scripts/makefile.solaris

# makefile for libpng on Solaris 2.x with gcc
# Copyright (C) 2004, 2006, 2007 Glenn Randers-Pehrson
# Contributed by William L. Sebok, based on makefile.linux
# Copyright (C) 1998 Greg Roelofs
# Copyright (C) 1996, 1997 Andreas Dilger
# For conditions of distribution and use, see copyright notice in png.h

# Library name:
LIBNAME = libpng12
PNGMAJ = 0
PNGMIN = 1.2.20
PNGVER = $(PNGMAJ).$(PNGMIN)

# Shared library names:
LIBSO=$(LIBNAME).so
LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
LIBSOVER=$(LIBNAME).so.$(PNGVER)
OLDSO=libpng.so
OLDSOMAJ=libpng.so.3
OLDSOVER=libpng.so.3.$(PNGMIN)

# Utilities:
AR_RC=ar rc
CC=gcc
MKDIR_P=mkdir -p
LN_SF=ln -f -s
RANLIB=echo
RM_F=/bin/rm -f

# Where make install puts libpng.a, libpng12.so*, and png.h
prefix=/usr/local
exec_prefix=$(prefix)

# Where the zlib library and include files are located
# Changing these to ../zlib poses a security risk.  If you want
# to have zlib in an adjacent directory, specify the full path instead of "..".
#ZLIBLIB=../zlib
#ZLIBINC=../zlib

ZLIBLIB=/usr/local/lib
ZLIBINC=/usr/local/include

WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
	-Wmissing-declarations -Wtraditional -Wcast-align \
	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
CFLAGS=-I$(ZLIBINC) -Wall -O \
	-DPNG_NO_MMX_CODE; \
	# $(WARNMORE) -g -DPNG_DEBUG=5
LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm

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

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

.SUFFIXES:      .c .o .pic.o

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

all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config

libpng.a: $(OBJS)
	$(AR_RC) $@ $(OBJS)
	$(RANLIB) $@

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

libpng-config:
	( cat scripts/libpng-config-head.in; \
	echo prefix=\"$(prefix)\"; \
	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
	echo cppflags=\"-DPNG_NO_MMX_CODE\"; \
	echo L_opts=\"-L$(LIBPATH)\"; \
	echo R_opts=\"-R$(LIBPATH)\"; \
	echo libs=\"-lpng12 -lz -lm\"; \
	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): $(OBJSDLL)
	@case "`type ld`" in *ucb*) \
	echo; \
	echo '## WARNING:'; \
	echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
	echo '## and /usr/ucb/ld.  If they do, you need to adjust your PATH'; \
	echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
	echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
	echo '## at all.  If it is, things are likely to break because of'; \
	echo '## the libucb dependency that is created.'; \
	echo; \
	;; \
	esac
	$(LD) -G -h $(LIBSOMAJ) \
	 -o $(LIBSOVER) $(OBJSDLL)

$(OLDSOVER): $(OBJS)
	$(LD) -G -h $(OLDSOMAJ) \
	 -o $(OLDSOVER) $(OBJSDLL)

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

test: pngtest
	./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) $(LIBSO); \
	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ))
	-@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)/$(LIBNAME)-config --cflags` pngtest.c \
	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
	   -L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
	./pngtestd pngtest.png

test-installed:
	echo
	echo Testing installed dynamic shared library.
	$(CC) -I$(ZLIBINC) \
	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
	   -L$(ZLIBLIB) -R$(ZLIBLIB)
	./pngtesti pngtest.png

clean:
	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
	libpng-config $(LIBSO) $(LIBSOMAJ)* \
	$(OLDSOVER) \
	libpng.pc

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
Commit	Line	Data
	1	# makefile for libpng on Solaris 2.x with gcc
	2	# Copyright (C) 2004, 2006, 2007 Glenn Randers-Pehrson
	3	# Contributed by William L. Sebok, based on makefile.linux
	4	# Copyright (C) 1998 Greg Roelofs
	5	# Copyright (C) 1996, 1997 Andreas Dilger
	6	# For conditions of distribution and use, see copyright notice in png.h
	7
	8	# Library name:
	9	LIBNAME = libpng12
	10	PNGMAJ = 0
	11	PNGMIN = 1.2.20
	12	PNGVER = $(PNGMAJ).$(PNGMIN)
	13
	14	# Shared library names:
	15	LIBSO=$(LIBNAME).so
	16	LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
	17	LIBSOVER=$(LIBNAME).so.$(PNGVER)
	18	OLDSO=libpng.so
	19	OLDSOMAJ=libpng.so.3
	20	OLDSOVER=libpng.so.3.$(PNGMIN)
	21
	22	# Utilities:
	23	AR_RC=ar rc
	24	CC=gcc
	25	MKDIR_P=mkdir -p
	26	LN_SF=ln -f -s
	27	RANLIB=echo
	28	RM_F=/bin/rm -f
	29
	30	# Where make install puts libpng.a, libpng12.so*, and png.h
	31	prefix=/usr/local
	32	exec_prefix=$(prefix)
	33
	34	# Where the zlib library and include files are located
	35	# Changing these to ../zlib poses a security risk. If you want
	36	# to have zlib in an adjacent directory, specify the full path instead of "..".
	37	#ZLIBLIB=../zlib
	38	#ZLIBINC=../zlib
	39
	40	ZLIBLIB=/usr/local/lib
	41	ZLIBINC=/usr/local/include
	42
	43	WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
	44	-Wmissing-declarations -Wtraditional -Wcast-align \
	45	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
	46	CFLAGS=-I$(ZLIBINC) -Wall -O \
	47	-DPNG_NO_MMX_CODE; \
	48	# $(WARNMORE) -g -DPNG_DEBUG=5
	49	LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
	50
	51	INCPATH=$(prefix)/include
	52	LIBPATH=$(exec_prefix)/lib
	53	MANPATH=$(prefix)/man
	54	BINPATH=$(exec_prefix)/bin
	55
	56	# override DESTDIR= on the make install command line to easily support
	57	# installing into a temporary location. Example:
	58	#
	59	# make install DESTDIR=/tmp/build/libpng
	60	#
	61	# If you're going to install into a temporary location
	62	# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
	63	# you execute make install.
	64	DESTDIR=
	65
	66	DB=$(DESTDIR)$(BINPATH)
	67	DI=$(DESTDIR)$(INCPATH)
	68	DL=$(DESTDIR)$(LIBPATH)
	69	DM=$(DESTDIR)$(MANPATH)
	70
	71	OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
	72	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
	73	pngwtran.o pngmem.o pngerror.o pngpread.o
	74
	75	OBJSDLL = $(OBJS:.o=.pic.o)
	76
	77	.SUFFIXES: .c .o .pic.o
	78
	79	.c.pic.o:
	80	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
	81
	82	all: libpng.a $(LIBSO) pngtest libpng.pc libpng-config
	83
	84	libpng.a: $(OBJS)
	85	$(AR_RC) $@ $(OBJS)
	86	$(RANLIB) $@
	87
	88	libpng.pc:
	89	cat scripts/libpng.pc.in \| sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
	90
	91	libpng-config:
	92	( cat scripts/libpng-config-head.in; \
	93	echo prefix=\"$(prefix)\"; \
	94	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
	95	echo cppflags=\"-DPNG_NO_MMX_CODE\"; \
	96	echo L_opts=\"-L$(LIBPATH)\"; \
	97	echo R_opts=\"-R$(LIBPATH)\"; \
	98	echo libs=\"-lpng12 -lz -lm\"; \
	99	cat scripts/libpng-config-body.in ) > libpng-config
	100	chmod +x libpng-config
	101
	102	$(LIBSO): $(LIBSOMAJ)
	103	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
	104
	105	$(LIBSOMAJ): $(LIBSOVER)
	106	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
	107
	108	$(LIBSOVER): $(OBJSDLL)
	109	@case "`type ld`" in ucb) \
	110	echo; \
	111	echo '## WARNING:'; \
	112	echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
	113	echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
	114	echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
	115	echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
	116	echo '## at all. If it is, things are likely to break because of'; \
	117	echo '## the libucb dependency that is created.'; \
	118	echo; \
	119	;; \
	120	esac
	121	$(LD) -G -h $(LIBSOMAJ) \
	122	-o $(LIBSOVER) $(OBJSDLL)
	123
	124	$(OLDSOVER): $(OBJS)
	125	$(LD) -G -h $(OLDSOMAJ) \
	126	-o $(OLDSOVER) $(OBJSDLL)
	127
	128	pngtest: pngtest.o $(LIBSO)
	129	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
	130
	131	test: pngtest
	132	./pngtest
	133
	134	install-headers: png.h pngconf.h
	135	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
	136	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
	137	cp png.h pngconf.h $(DI)/$(LIBNAME)
	138	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
	139	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
	140	-@$(RM_F) $(DI)/libpng
	141	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
	142
	143	install-static: install-headers libpng.a
	144	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
	145	cp libpng.a $(DL)/$(LIBNAME).a
	146	chmod 644 $(DL)/$(LIBNAME).a
	147	-@$(RM_F) $(DL)/libpng.a
	148	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
	149
	150	install-shared: install-headers $(LIBSOVER) libpng.pc \
	151	$(OLDSOVER)
	152	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
	153	-@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
	154	-@$(RM_F) $(DL)/$(LIBSOMAJ)
	155	-@$(RM_F) $(DL)/$(OLDSO)
	156	-@$(RM_F) $(DL)/$(OLDSOMAJ)
	157	-@$(RM_F) $(DL)/$(OLDSOVER)*
	158	cp $(LIBSOVER) $(DL)
	159	cp $(OLDSOVER) $(DL)
	160	chmod 755 $(DL)/$(LIBSOVER)
	161	chmod 755 $(DL)/$(OLDSOVER)
	162	(cd $(DL); \
	163	$(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
	164	$(LN_SF) $(OLDSOMAJ) $(OLDSO); \
	165	$(LN_SF) $(LIBSOVER) $(LIBSO); \
	166	$(LN_SF) $(LIBSOVER) $(LIBSOMAJ))
	167	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
	168	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
	169	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
	170	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
	171	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
	172	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
	173
	174	install-man: libpng.3 libpngpf.3 png.5
	175	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
	176	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
	177	-@$(RM_F) $(DM)/man3/libpng.3
	178	-@$(RM_F) $(DM)/man3/libpngpf.3
	179	cp libpng.3 $(DM)/man3
	180	cp libpngpf.3 $(DM)/man3
	181	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
	182	-@$(RM_F) $(DM)/man5/png.5
	183	cp png.5 $(DM)/man5
	184
	185	install-config: libpng-config
	186	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
	187	-@$(RM_F) $(DB)/libpng-config
	188	-@$(RM_F) $(DB)/$(LIBNAME)-config
	189	cp libpng-config $(DB)/$(LIBNAME)-config
	190	chmod 755 $(DB)/$(LIBNAME)-config
	191	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
	192
	193	install: install-static install-shared install-man install-config
	194
	195	# If you installed in $(DESTDIR), test-installed won't work until you
	196	# move the library to its final location. Use test-dd to test it
	197	# before then.
	198
	199	test-dd:
	200	echo
	201	echo Testing installed dynamic shared library in $(DL).
	202	$(CC) -I$(DI) -I$(ZLIBINC) \
	203	`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
	204	-o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` \
	205	-L$(DL) -L$(ZLIBLIB) -R$(ZLIBLIB) -R$(DL)
	206	./pngtestd pngtest.png
	207
	208	test-installed:
	209	echo
	210	echo Testing installed dynamic shared library.
	211	$(CC) -I$(ZLIBINC) \
	212	`$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
	213	-o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` \
	214	-L$(ZLIBLIB) -R$(ZLIBLIB)
	215	./pngtesti pngtest.png
	216
	217	clean:
	218	$(RM_F) *.o libpng.a pngtest pngtesti pngout.png \
	219	libpng-config $(LIBSO) $(LIBSOMAJ)* \
	220	$(OLDSOVER) \
	221	libpng.pc
	222
	223	DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
	224	writelock:
	225	chmod a-w .[ch35] $(DOCS) scripts/
	226
	227	# DO NOT DELETE THIS LINE -- make depend depends on it.
	228
	229	png.o png.pic.o: png.h pngconf.h
	230	pngerror.o pngerror.pic.o: png.h pngconf.h
	231	pngrio.o pngrio.pic.o: png.h pngconf.h
	232	pngwio.o pngwio.pic.o: png.h pngconf.h
	233	pngmem.o pngmem.pic.o: png.h pngconf.h
	234	pngset.o pngset.pic.o: png.h pngconf.h
	235	pngget.o pngget.pic.o: png.h pngconf.h
	236	pngread.o pngread.pic.o: png.h pngconf.h
	237	pngrtran.o pngrtran.pic.o: png.h pngconf.h
	238	pngrutil.o pngrutil.pic.o: png.h pngconf.h
	239	pngtrans.o pngtrans.pic.o: png.h pngconf.h
	240	pngwrite.o pngwrite.pic.o: png.h pngconf.h
	241	pngwtran.o pngwtran.pic.o: png.h pngconf.h
	242	pngwutil.o pngwutil.pic.o: png.h pngconf.h
	243	pngpread.o pngpread.pic.o: png.h pngconf.h
	244
	245	pngtest.o: png.h pngconf.h