copying libpng-1.0.9/scripts/makefile.macosx
diff -uNr libpng-1.0.9.ORIG/scripts/makefile.macosx libpng-1.0.9/scripts/makefile.macosx
--- libpng-1.0.9.ORIG/scripts/makefile.macosx	Sat Jan  6 09:24:45 2001
+++ libpng-1.0.9/scripts/makefile.macosx	Tue Apr 24 16:21:44 2001
@@ -1,51 +1,92 @@
-# makefile for libpng, MACOS X
-# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# makefile for libpng on Linux ELF with gcc
+# 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 and png.h
+CC=gcc
+
+# 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
+ZLIBLIB=/usr/lib
+ZLIBINC=/usr/include
+
+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.
 
-CC=cc
-CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
-LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+CFLAGS=-I$(ZLIBINC) -Wall $(RPM_OPT_FLAGS) \
+	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 
+RANLIB=ranlib -s
 #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 = 1.0.9
+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
 
-all: libpng.a pngtest
+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)
+	ar rc $@ $(OBJS)
 	$(RANLIB) $@
 
-pngtest: pngtest.o libpng.a
+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)
+	$(CC) -dynamiclib -install_name libpng.$(PNGMAJ).dylib -o libpng.$(PNGVER).dylib \
+	 $(OBJSDLL) -L$(ZLIBLIB) -lz -lm
+
+pngtest: pngtest.o libpng.dylib
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
 
 test: pngtest
 	./pngtest
 
-install: libpng.a
-	-@mkdir $(prefix)/include
-	-@mkdir $(prefix)/lib
-	cp png.h $(prefix)/include
-	cp pngconf.h $(prefix)/include
-	chmod 644 $(prefix)/include/png.h
-	chmod 644 $(prefix)/include/pngconf.h
-	cp libpng.a $(prefix)/lib
-	chmod 644 $(prefix)/lib/libpng.a
+install: libpng.a libpng.$(PNGVER).dylib
+	-@if [ ! -d $(INCPATH)  ]; then mkdir -p $(INCPATH); fi
+	-@if [ ! -d $(LIBPATH) ]; then mkdir -p $(LIBPATH); fi
+	cp png.h pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
+	cp -p libpng.a libpng.$(PNGVER).dylib $(LIBPATH)
+	chown root:wheel $(LIBPATH)/libpng.*
+	chmod 755 $(LIBPATH)/libpng.$(PNGVER).dylib
+	-@/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 pngtest pngout.png
+	/bin/rm -f *.o libpng.a libpng*.dylib pngtest pngout.png
 
 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
 writelock:
@@ -53,20 +94,20 @@
 
 # DO NOT DELETE THIS LINE -- make depend depends on it.
 
-png.o: png.h pngconf.h
-pngerror.o: png.h pngconf.h
-pngrio.o: png.h pngconf.h
-pngwio.o: png.h pngconf.h
-pngmem.o: png.h pngconf.h
-pngset.o: png.h pngconf.h
-pngget.o: png.h pngconf.h
-pngread.o: png.h pngconf.h
-pngrtran.o: png.h pngconf.h
-pngrutil.o: png.h pngconf.h
-pngtest.o: png.h pngconf.h
-pngtrans.o: png.h pngconf.h
-pngwrite.o: png.h pngconf.h
-pngwtran.o: png.h pngconf.h
-pngwutil.o: png.h pngconf.h
-pngpread.o: png.h pngconf.h
+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