makefile.sggcc

png文件的解码和文件格式说明

# makefile for libpng, SGI IRIX with gcc
# 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

VER=1.0.12
# See "man dso" for info about shared objects
SONUM=2
LIBS=libpng.so.$(SONUM).$(VER)
SHAREDLIB=libpng.so
libdir=$(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 $(SHAREDLIB).$(VER) pngtest

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

$(SHAREDLIB).$(VER): $(OBJS)
	$(LDSHARED) -o $@ $(OBJS)
	rm -f $(SHAREDLIB) $(SHAREDLIB).$(SONUM)
	ln -s $@ $(SHAREDLIB)
	ln -s $@ $(SHAREDLIB).$(SONUM)

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

test: pngtest
	./pngtest

install: libpng.a
	-@mkdir $(prefix)/include
	-@mkdir $(prefix)/lib
	cp png.h $(prefix)/include
	cp pngconf.h $(prefix)/include
	chmod 644 $(prefix)/include/png.h
	chmod 644 $(prefix)/include/pngconf.h
	cp libpng.a $(prefix)/lib
	chmod 644 $(prefix)/lib/libpng.a
	cp $(SHAREDLIB).$(VER) $(libdir); chmod 755 $(SHAREDLIB).$(VER)
	(cd $(libdir); if test -f $(SHAREDLIB).$(VER); then \
	rm -f $(SHAREDLIB) $(SHAREDLIB).$(SONUM); \
	ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB); \
	ln -s $(SHAREDLIB).$(VER) $(SHAREDLIB).$(SONUM); \
	(ldconfig || true)  >/dev/null 2>&1; \
	fi)

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