LIBRARY= libpng16

CC=gcc
CFLAGS = -U_Win32 -U_WIN32 -U__MINGW32__ -c -O2 -fomit-frame-pointer

LD = ld

AR= ar

STRIP = $(PREFIX)strip

LDFLAGS:=  -shared -s -nostdlib -T ../newlib/dll.lds --entry _DllStartup --image-base=0 --out-implib libpng.dll.a

INCLUDES= -I. -I../newlib/include -I../zlib

LIBPATH:= -L../newlib -L../zlib

LIBS:=  -ldll -lc.dll -lz.dll

DEFS = -DHAVE_CONFIG_H


LIBPNG_DEFINES = -DPNG_CONFIGURE_LIBPNG 

DEFINES= $(DEFS) $(LIBPNG_DEFINES)



SOURCES = png.c pngerror.c pngget.c pngmem.c pngpread.c	\
	  pngread.c pngrio.c pngrtran.c pngrutil.c	\
	  pngset.c pngtrans.c pngwio.c pngwrite.c 	\
	  pngwtran.c pngwutil.c
 

OBJECTS =  $(patsubst %.c, %.o, $(SOURCES))


# targets 


all:$(LIBRARY).a $(LIBRARY).dll


$(LIBRARY).a: $(OBJECTS) Makefile
	ar cvrs $(LIBRARY).a $(OBJECTS)

$(LIBRARY).dll: libpng16.def $(OBJECTS) Makefile
	$(LD) $(LDFLAGS) $(LIBPATH) -o $@  libpng16.def $(OBJECTS) $(LIBS)
	$(STRIP) $@
	sed -f ../newlib/cmd1.sed libpng16.def > mem
	sed -f ../newlib/cmd2.sed mem >libpng.inc

%.o : %.c Makefile
	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -o $@ $<

clean: 
	-rm -f *.o