# makefile for libpng.a and libpng16.so on Linux ELF with gcc

# Copyright (C) 1998,1999,2002,2006,2008,2010-2014,2017 Greg Roelofs and

# Glenn Randers-Pehrson

# Copyright (C) 1996,1997 Andreas Dilger

#

# This code is released under the libpng license.

# For conditions of distribution and use, see the disclaimer

# and license in png.h

# Library name:

LIBNAME = libpng16

PNGMAJ = 16

# Shared library names:

LIBSO=$(LIBNAME).so

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

LIBSOREL=$(LIBSOMAJ).$(RELEASE)

OLDSO=libpng.so

# Utilities:

AR_RC=ar rc

CC=gcc

MKDIR_P=mkdir -p

LN_SF=ln -sf

RANLIB=ranlib

CP=cp

RM_F=/bin/rm -f

# where "make install" puts libpng16.a, libpng16.so*,

# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h

# Prefix must be a full pathname.

prefix=/usr/local

exec_prefix=$(prefix)

# 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 \

# -Wmissing-declarations -Wtraditional -Wcast-align \

# -Wstrict-prototypes -Wmissing-prototypes

# for pgcc version 2.95.1, -O3 is buggy; don't use it.

CPPFLAGS=-I$(ZLIBINC)

CPPFLAGS += -DPNG_ARM_NEON

CPPFLAGS += -DPNG_MIPS_MSA

CPPFLAGS += -DPNG_INTEL_SSE

CPPFLAGS += -DPNG_POWERPC_VSX

CPPFLAGS+=-ansi -pedantic -Wextra -Wall -Wshadow -Wno-sign-conversion

CPPFLAGS+=-W -Wall -Wconversion $(ALIGN)

# CPPFLAGS+=$(WARNMORE)

CFLAGS= -O3 -funroll-loops

LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm

LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -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)

# 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 \

arm/arm_init.o arm/filter_neon_intrinsics.o \

mips/mips_init.o mips/filter_msa_intrinsics.o \

intel/intel_init.o intel/filter_sse2_intrinsics.o\

powerpc/powerpc_init.o powerpc/filter_vsx_intrinsics.o

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

.SUFFIXES: .c .o .pic.o

.c.o:

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

.c.pic.o:

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

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

pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)

$(CP) $(PNGLIBCONF_H_PREBUILT) $@

libpng.a: $(OBJS)

$(AR_RC) $@ $(OBJS)

$(RANLIB) $@

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)! \

-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc

libpng-config:

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

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

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

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

echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \

echo libs=\"-lpng16 -lz -lm\"; \

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

chmod +x libpng-config

$(LIBSO): $(LIBSOMAJ)

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

$(LIBSOMAJ): $(OBJSDLL)

$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)

pngtest: pngtest.o $(LIBSO)

$(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 " Running pngtest dynamically linked with $(LIBSO):"

@echo ""

./pngtest

@echo ""

@echo " Running pngtest statically linked with libpng.a:"

@echo ""

./pngtest-static

install-headers: png.h pngconf.h pnglibconf.h

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

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

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

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

-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.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 $(LIBSOMAJ) libpng.pc

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

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

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

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

cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)

chmod 755 $(DL)/$(LIBSOREL)

(cd $(DL); \

$(LN_SF) $(LIBSOREL) $(LIBSO); \

$(LN_SF) $(LIBSO) $(OLDSO))

-@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) $(CPPFLAGS) \

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

-L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \

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

./pngtestd pngtest.png

test-installed:

$(CC) $(CPPFLAGS) \

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

-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \

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

./pngtesti pngtest.png

clean:

$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \

$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \

libpng.pc pnglibconf.h

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

arm/arm_init.o arm/arm_init.o: pngpriv.h

arm/filter_neon_intrinsics.o arm/filter_neon_intrinsics.pic.o: pngpriv.h

mips/mips_init.o mips/mips_init.pic.o: pngpriv.h

mips/filter_msa_intrinsics.o mips/filter_msa_intrinsics.pic.: pngpriv.h

intel/intel_init.o intel/intel_init.pic.: pngpriv.h

intel/filter_sse2_intrinsics.o intel/filter_sse2_intrinsics.pic.: pngpriv.h

powerpc/powerpc_init.o powerpc/powerpc_init.pic.: pngpriv.h

powerpc/filter_vsx_intrinsics.o powerpc/filter_vsx_intrinsics.pic.: pngpriv.h

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