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# Copyright (C) 1995-2002 artofcode LLC. All rights reserved.
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#
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# This software is provided AS-IS with no warranty, either express or
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# implied.
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#
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# This software is distributed under license and may not be copied,
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# modified or distributed except as expressly authorized under the terms
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# of the license contained in the file LICENSE in this distribution.
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#
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# For more information about licensing, please refer to
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# http://www.ghostscript.com/licensing/. For information on
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# commercial licensing, go to http://www.artifex.com/licensing/ or
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# contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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# San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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# $Id: libpng.mak,v 1.14 2003/05/15 10:01:38 ghostgum Exp $
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# makefile for PNG (Portable Network Graphics) code.
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# Users of this makefile must define the following:
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# ZSRCDIR - the zlib source directory
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# ZGENDIR - the zlib generated intermediate file directory
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# ZOBJDIR - the zlib object directory
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# PNGSRCDIR - the source directory
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# PNGGENDIR - the generated intermediate file directory
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# PNGOBJDIR - the object directory
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# PNGVERSION - the library version number ("90", "95", "96",
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# and "10001" through "10012" and "10201").
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# For historical reasons, "101" and "102" are also acceptable,
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# even though they don't match libpng's numbering scheme
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# (see png.h for more details).
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# versions prior 0.90 is not supported.
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# SHARE_LIBPNG - 0 to compile libpng, 1 to share
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# LIBPNG_NAME - if SHARE_LIBPNG=1, the name of the shared library
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# NOTE: currently users of this makefile define PSRCDIR and PVERSION,
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# not PNGSRCDIR and PNGVERSION. This is a bug.
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# This partial makefile compiles the png library for use in the Ghostscript
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# PNG drivers. You can get the source code for this library from:
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# http://www.libpng.org/pub/png/src/
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# ftp://swrinde.nde.swri.edu/pub/png/src/
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# ftp://ftp.uu.net/graphics/png/src/
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# http://libpng.sourceforge.net/
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# Please see Ghostscript's `Make.htm' file for instructions about how to
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# unpack these archives.
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#
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# When each version of Ghostscript is released, we copy the associated
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# version of the png library to
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# ftp://ftp.cs.wisc.edu/ghost/3rdparty/
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# for more convenient access.
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#
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# this makefile should work with libpng versions 0.90 and above
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#
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# NOTE: the archive for libpng 0.95 may be inconsistent: if you have
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# compilation problems, use a newer version.
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#
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# Please see Ghostscript's Make.htm file for instructions about how to
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# unpack these archives.
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#
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# The specification for the PNG file format is available from:
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# http://www.group42.com/png.htm
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# http://www.w3.org/pub/WWW/TR/WD-png
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# (Rename directories.)
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PNGSRCDIR=$(PSRCDIR)
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PNGVERSION=$(PVERSION)
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PNGSRC=$(PNGSRCDIR)$(D)
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PNGGEN=$(PNGGENDIR)$(D)
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PNGOBJ=$(PNGOBJDIR)$(D)
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PNGO_=$(O_)$(PNGOBJ)
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PZGEN=$(ZGENDIR)$(D)
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# PI_ and PF_ are defined in gs.mak.
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PNGCC=$(CC_) $(I_)$(PI_)$(_I) $(PF_)
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# Define the name of this makefile.
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LIBPNG_MAK=$(GLSRC)libpng.mak
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png.clean : png.config-clean png.clean-not-config-clean
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### WRONG. MUST DELETE OBJ AND GEN FILES SELECTIVELY.
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png.clean-not-config-clean :
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$(RM_) $(PNGOBJ)*.$(OBJ)
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png.config-clean :
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$(RM_) $(PNGGEN)lpg*.dev
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PDEP=$(AK)
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png_1=$(PNGOBJ)png.$(OBJ) $(PNGOBJ)pngmem.$(OBJ) $(PNGOBJ)pngerror.$(OBJ) $(PNGOBJ)pngset.$(OBJ)
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png_2=$(PNGOBJ)pngtrans.$(OBJ) $(PNGOBJ)pngwrite.$(OBJ) $(PNGOBJ)pngwtran.$(OBJ) $(PNGOBJ)pngwutil.$(OBJ)
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# libpng modules
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$(PNGOBJ)png.$(OBJ) : $(PNGSRC)png.c $(PDEP)
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$(PNGCC) $(PNGO_)png.$(OBJ) $(C_) $(PNGSRC)png.c
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$(PNGOBJ)pngwio.$(OBJ) : $(PNGSRC)pngwio.c $(PDEP)
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$(PNGCC) $(PNGO_)pngwio.$(OBJ) $(C_) $(PNGSRC)pngwio.c
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$(PNGOBJ)pngmem.$(OBJ) : $(PNGSRC)pngmem.c $(PDEP)
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$(PNGCC) $(PNGO_)pngmem.$(OBJ) $(C_) $(PNGSRC)pngmem.c
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$(PNGOBJ)pngerror.$(OBJ) : $(PNGSRC)pngerror.c $(PDEP)
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$(PNGCC) $(PNGO_)pngerror.$(OBJ) $(C_) $(PNGSRC)pngerror.c
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$(PNGOBJ)pngset.$(OBJ) : $(PNGSRC)pngset.c $(PDEP)
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$(PNGCC) $(PNGO_)pngset.$(OBJ) $(C_) $(PNGSRC)pngset.c
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$(PNGOBJ)pngtrans.$(OBJ) : $(PNGSRC)pngtrans.c $(PDEP)
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$(PNGCC) $(PNGO_)pngtrans.$(OBJ) $(C_) $(PNGSRC)pngtrans.c
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$(PNGOBJ)pngwrite.$(OBJ) : $(PNGSRC)pngwrite.c $(PDEP)
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$(PNGCC) $(PNGO_)pngwrite.$(OBJ) $(C_) $(PNGSRC)pngwrite.c
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$(PNGOBJ)pngwtran.$(OBJ) : $(PNGSRC)pngwtran.c $(PDEP)
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$(PNGCC) $(PNGO_)pngwtran.$(OBJ) $(C_) $(PNGSRC)pngwtran.c
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$(PNGOBJ)pngwutil.$(OBJ) : $(PNGSRC)pngwutil.c $(PDEP)
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$(PNGCC) $(PNGO_)pngwutil.$(OBJ) $(C_) $(PNGSRC)pngwutil.c
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# Define the version of libpng.dev that we are actually using.
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$(PNGGEN)libpng.dev : $(TOP_MAKEFILES) $(PNGGEN)libpng_$(SHARE_LIBPNG).dev
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$(CP_) $(PNGGEN)libpng_$(SHARE_LIBPNG).dev $(PNGGEN)libpng.dev
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# Define the shared version of libpng.
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# Note that it requires libz, which must be searched *after* libpng.
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$(PNGGEN)libpng_1.dev : $(TOP_MAKEFILES) $(LIBPNG_MAK) $(ECHOGS_XE) $(PZGEN)zlibe.dev
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$(SETMOD) $(PNGGEN)libpng_1 -lib $(LIBPNG_NAME)
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$(ADDMOD) $(PNGGEN)libpng_1 -include $(PZGEN)zlibe.dev
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# Define the non-shared version of libpng.
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$(PNGGEN)libpng_0.dev : $(LIBPNG_MAK) $(ECHOGS_XE) $(png_1) $(png_2)\
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$(PZGEN)zlibe.dev $(PNGGEN)lpg$(PNGVERSION).dev
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$(SETMOD) $(PNGGEN)libpng_0 $(png_1)
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$(ADDMOD) $(PNGGEN)libpng_0 $(png_2)
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$(ADDMOD) $(PNGGEN)libpng_0 -include $(PZGEN)zlibe.dev $(PNGGEN)lpg$(PNGVERSION).dev
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$(PNGGEN)lpg$(PNGVERSION).dev : $(LIBPNG_MAK) $(ECHOGS_XE) $(PNGOBJ)pngwio.$(OBJ) $(PZGEN)crc32.dev
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$(SETMOD) $(PNGGEN)lpg$(PNGVERSION) $(PNGOBJ)pngwio.$(OBJ) -include $(PZGEN)crc32.dev
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