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# makefile for libpng on Linux ELF with gcc using MMX assembler code
# Copyright 1996-1997 Andreas Dilger
# Copyright 1998-2001 Greg Roelofs
# For conditions of distribution and use, see copyright notice in png.h
# CAUTION: Do not use this makefile with gcc versions 2.7.2.2 and earlier.
# NOTE: When testing MMX performance on a multitasking system, make sure
# there are no floating-point programs (e.g., SETI@Home) running in
# the background! Context switches between MMX and FPU are expensive.
CC=gcc
# where "make install" puts libpng.a, libpng.so*, png.h, and pngconf.h
prefix=/usr/local
# Where the zlib library and include files are located
#ZLIBLIB=/usr/local/lib
#ZLIBINC=/usr/local/include
ZLIBLIB=../zlib
ZLIBINC=../zlib
ALIGN=
# for i386:
#ALIGN=-malign-loops=2 -malign-functions=2
WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
-Wmissing-declarations -Wtraditional -Wcast-align \
-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
# for pgcc version 2.95.1, -O3 is buggy; don't use it.
### for generic gcc:
CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
-fomit-frame-pointer # $(WARNMORE) -g -DPNG_DEBUG=5
### for gcc 2.95.2 on 686:
#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
# -mcpu=i686 -malign-double -ffast-math -fstrict-aliasing \
# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
### for gcc 2.7.2.3 on 486 and up:
#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
# -m486 -malign-double -ffast-math \
# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
RANLIB=ranlib
#RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it.
PNGMAJ = 2
PNGMIN = 1.0.12beta1
PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include
LIBPATH=$(prefix)/lib
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 pnggccrd.o
OBJSDLL = $(OBJS:.o=.pic.o)
.SUFFIXES: .c .o .pic.o
.c.pic.o:
$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
all: libpng.a libpng.so pngtest pngtest-static
pnggccrd.o: pnggccrd.c png.h pngconf.h
@echo ""
@echo ' You can ignore the single "control reaches end of non-void function"'
@echo ' warning and multiple "<variable> defined but not used" warnings:'
@echo ""
$(CC) -c $(CFLAGS) -o $@ $*.c
@echo ""
pnggccrd.pic.o: pnggccrd.c png.h pngconf.h
@echo ""
@echo ' You can ignore the single "control reaches end of non-void function"'
@echo ' warning and multiple "<variable> defined but not used" warnings:'
@echo ""
$(CC) -c $(CFLAGS) -fPIC -o $@ pnggccrd.c
@echo ""
libpng.a: $(OBJS)
ar rc $@ $(OBJS)
$(RANLIB) $@
libpng.so: libpng.so.$(PNGMAJ)
ln -sf libpng.so.$(PNGMAJ) libpng.so
libpng.so.$(PNGMAJ): libpng.so.$(PNGVER)
ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ)
libpng.so.$(PNGVER): $(OBJSDLL)
$(CC) -shared -Wl,-soname,libpng.so.$(PNGMAJ) -o libpng.so.$(PNGVER) \
$(OBJSDLL) -L$(ZLIBLIB) -lz -lm -lc
pngtest: pngtest.o libpng.so
$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
pngtest-static: pngtest.o libpng.a
$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
test: pngtest pngtest-static
@echo ""
@echo " Testing dynamically linked version:"
@echo ""
./pngtest
@echo ""
@echo " Testing statically linked version:"
@echo ""
./pngtest-static
install: libpng.a libpng.so.$(PNGVER)
-@if [ ! -d $(INCPATH) ]; then mkdir $(INCPATH); fi
-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
cp png.h pngconf.h $(INCPATH)
chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
cp libpng.a libpng.so.$(PNGVER) $(LIBPATH)
chmod 755 $(LIBPATH)/libpng.so.$(PNGVER)
-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
(cd $(LIBPATH); ln -sf libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
ln -sf libpng.so.$(PNGMAJ) libpng.so)
clean:
/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
writelock:
chmod a-w *.[ch35] $(DOCS) scripts/*
png.o png.pic.o: png.h pngconf.h png.c
pngerror.o pngerror.pic.o: png.h pngconf.h pngerror.c
pngrio.o pngrio.pic.o: png.h pngconf.h pngrio.c
pngwio.o pngwio.pic.o: png.h pngconf.h pngwio.c
pngmem.o pngmem.pic.o: png.h pngconf.h pngmem.c
pngset.o pngset.pic.o: png.h pngconf.h pngset.c
pngget.o pngget.pic.o: png.h pngconf.h pngget.c
pngread.o pngread.pic.o: png.h pngconf.h pngread.c
pngrtran.o pngrtran.pic.o: png.h pngconf.h pngrtran.c
pngrutil.o pngrutil.pic.o: png.h pngconf.h pngrutil.c
pngtrans.o pngtrans.pic.o: png.h pngconf.h pngtrans.c
pngwrite.o pngwrite.pic.o: png.h pngconf.h pngwrite.c
pngwtran.o pngwtran.pic.o: png.h pngconf.h pngwtran.c
pngwutil.o pngwutil.pic.o: png.h pngconf.h pngwutil.c
pngpread.o pngpread.pic.o: png.h pngconf.h pngpread.c
pngtest.o: png.h pngconf.h pngtest.c
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