readded previously removed file

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16097 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/png/scripts/makefile.sgi b/src/png/scripts/makefile.sgi
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+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# 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$(ZLIBINC) -O -fullwarn # -g -DPNG_DEBUG=1
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=echo
+#RANLIB=ranlib
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+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
+
+libpng.a: $(OBJS)
+       ar rc $@  $(OBJS)
+       $(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+       $(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
+
+clean:
+       rm -f *.o libpng.a pngtest pngout.png
+
+# 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
+