# makefile for libpng using MSYS/gcc (shared, static library)

# Copyright (C) 2012 Glenn Randers-Pehrson and Christopher M. Wheeler

#

# Portions taken from makefile.linux:

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

# Glenn Randers-Pehrson

# Copyright (C) 2000 Cosmin Truta

# Copyright (C) 1996, 1997 Andreas Dilger

# 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

# # # # # # # # # # # # # # # # #

prefix=/usr/local

exec_prefix=$(prefix)

# Library name:

LIBNAME = libpng16

PNGMAJ = 16

RELEASE = 21

# Shared library names:

LIBSO=$(LIBNAME).dll

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

LIBSOREL=$(PNGMAJ).$(RELEASE)

OLDSO=libpng.dll

# Where the zlib library and include files are located.

#ZLIBLIB=../zlib

#ZLIBINC=../zlib

ZLIBLIB=/usr/local/lib

ZLIBINC=/usr/local/include

# Compiler, linker, lib and other tools

CC = gcc

LD = $(CC)

AR_RC = ar rcs

RANLIB = ranlib

CP = cp

RM_F = rm -rf

MKDIR_P=mkdir -p

LN_SF=ln -sf

#ARCH = -march=pentium3

#ARCH = -march=i686

ARCH =

CPPFLAGS = # -DPNG_DEBUG=5

CFLAGS = -W -Wall -O2 $(ARCH) # -g

LDFLAGS =

LIBS = -lz -lm

# File extensions

EXEEXT=.exe

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

# Variables

OBJS =  png.o pngerror.o pngget.o pngmem.o pngpread.o \

	pngread.o pngrio.o pngrtran.o pngrutil.o pngset.o \

	pngtrans.o pngwio.o pngwrite.o pngwtran.o pngwutil.o

# Targets

all: static shared

pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)

	$(CP) $(PNGLIBCONF_H_PREBUILT) $@

.c.o:

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

static: libpng.a pngtest$(EXEEXT)

shared: $(LIBSOMAJ)

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

$(LIBSO): $(LIBSOMAJ)

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

$(LIBSOMAJ):

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

libpng.a: $(OBJS)

	$(AR_RC) $@ $(OBJS)

	$(RANLIB) $@

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)

	-@$(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

	-@$(RM_F) $(DL)/libpng.a

	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)

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

install-shared: install-headers $(LIBSOMAJ) libpng.pc

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

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

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

	cp $(LIBSO) $(DL)/$(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

	(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

	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)

install: install-static install-shared install-man install-config

test: pngtest$(EXEEXT)

	./pngtest$(EXEEXT)

pngtest$(EXEEXT): pngtest.o libpng.a

	$(LD) $(LDFLAGS) -L$(ZLIBLIB) -o $@ pngtest.o libpng.a $(LIBS)

clean:

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

	$(LIBSOMAJ) libpng-config

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

pngget.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

pngpread.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

pngrio.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

pngset.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

pngwio.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

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