diff -ruN libpng-1.0.12/scripts/makefile.darwin libpng-1.0.12-patched/scripts/makefile.darwin
--- libpng-1.0.12/scripts/makefile.darwin	Thu Jan  1 01:00:00 1970
+++ libpng-1.0.12-patched/scripts/makefile.darwin	Tue Jun 26 20:24:21 2001
@@ -0,0 +1,106 @@
+# makefile for libpng on Darwin / Mac OS X
+# Copyright (C) 2001 Christoph Pfisterer
+# derived from makefile.linux:
+#  Copyright (C) 1998, 1999 Greg Roelofs
+#  Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where "make install" puts libpng.a, libpng.dylib, 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
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+
+#RANLIB=echo
+RANLIB=ranlib
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0.12
+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
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES:      .c .o .pic.o
+
+.c.pic.o:
+	$(CC) -c $(CFLAGS) -fno-common -o $@ $*.c
+
+all: libpng.a libpng.dylib pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@ $(OBJS)
+	$(RANLIB) $@
+
+libpng.dylib: libpng.$(PNGMAJ).dylib
+	ln -sf libpng.$(PNGMAJ).dylib libpng.dylib
+
+libpng.$(PNGMAJ).dylib: libpng.$(PNGVER).dylib
+	ln -sf libpng.$(PNGVER).dylib libpng.$(PNGMAJ).dylib
+
+libpng.$(PNGVER).dylib: $(OBJSDLL)
+	$(CC) -dynamiclib \
+	 -install_name $(LIBPATH)/libpng.$(PNGMAJ).dylib \
+	 -current_version $(PNGMIN) -compatibility_version $(PNGMIN) \
+	 -o libpng.$(PNGVER).dylib \
+	 $(OBJSDLL) -L$(ZLIBLIB) -lz
+
+pngtest: pngtest.o libpng.dylib
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a libpng.dylib
+	-@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 $(INCPATH)/pngconf.h
+	cp libpng.a libpng.$(PNGVER).dylib $(LIBPATH)
+	chmod 755 $(LIBPATH)/libpng.$(PNGVER).dylib
+	ranlib $(LIBPATH)/libpng.a
+	-@/bin/rm -f $(LIBPATH)/libpng.$(PNGMAJ).dylib $(LIBPATH)/libpng.dylib
+	(cd $(LIBPATH); ln -sf libpng.$(PNGVER).dylib libpng.$(PNGMAJ).dylib; \
+	 ln -sf libpng.$(PNGMAJ).dylib libpng.dylib)
+
+clean:
+	rm -f *.o libpng.a libpng.*dylib pngtest pngout.png
+
+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
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h