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# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
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# Last modified: 2 June 2007
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# The programs built by this makefile are described in the book,
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# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
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# Associates, 1999). Go buy a copy, eh? Well, OK, it's not
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# generally for sale anymore, but it's the thought that counts,
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# right? (Hint: http://www.libpng.org/pub/png/book/ )
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# Invoke this makefile from a DOS-prompt window via:
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# make -f Makefile.mingw32
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# This makefile assumes libpng and zlib have already been built or downloaded
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# and are in subdirectories at the same level as the current subdirectory
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# (as indicated by the PNGDIR and ZDIR macros below). It makes no assumptions
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# at all about the mingw32 installation tree (W32DIR). Edit as appropriate.
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# Note that the names of the dynamic and static libpng and zlib libraries
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# used below may change in later releases of the libraries. This makefile
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# builds both statically and dynamically linked executables by default.
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# (You need only one set, but for testing it can be handy to have both.)
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# macros --------------------------------------------------------------------
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#PNGDIR = ../..# for libpng-x.y.z/contrib/gregbook builds
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PNGDIR = ../libpng-win32
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PNGLIBd = $(PNGDIR)/libpng.dll.a # dynamically linked
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PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
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#ZDIR = ../../../zlib-win32# for libpng-x.y.z/contrib/gregbook builds
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ZLIBd = $(ZDIR)/libzdll.a
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ZLIBs = $(ZDIR)/libz.a
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# change this to be the path where mingw32 installs its stuff:
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#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
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W32INC = -I$(W32DIR)/include
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W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
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#CC = i386-mingw32msvc-gcc # e.g., Linux -> Win32 cross-compilation
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CFLAGS = -O -Wall $(INCS) $(MINGW_CCFLAGS)
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# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
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# [-ansi, -pedantic and -W can also be used]
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LDFLAGS = $(MINGW_LDFLAGS)
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INCS = $(PNGINC) $(ZINC) $(W32INC)
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RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
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RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
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WLIBSd = $(PNGLIBd) $(ZLIBd)
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WLIBSs = $(PNGLIBs) $(ZLIBs)
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ROBJSd = $(RPNG)$(O) readpng.pic$(O)
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ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
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WOBJSd = $(WPNG)$(O) writepng.pic$(O)
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RPNGs = $(RPNG)-static
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RPNG2s = $(RPNG2)-static
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WPNGs = $(WPNG)-static
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ROBJSs = $(RPNG)$(O) readpng$(O)
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ROBJS2s = $(RPNG2)$(O) readpng2$(O)
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WOBJSs = $(WPNG)$(O) writepng$(O)
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STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
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DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
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EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
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# implicit make rules -------------------------------------------------------
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$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
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# dependencies --------------------------------------------------------------
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$(RPNGs)$(E): $(ROBJSs)
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$(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
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$(RPNG)$(E): $(ROBJSd)
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$(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
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$(RPNG2s)$(E): $(ROBJS2s)
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$(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
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$(RPNG2)$(E): $(ROBJS2d)
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$(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
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$(WPNGs)$(E): $(WOBJSs)
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$(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
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$(WPNG)$(E): $(WOBJSd)
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$(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
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$(RPNG)$(O): $(RPNG).c readpng.h
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$(RPNG2)$(O): $(RPNG2).c readpng2.h
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$(WPNG)$(O): $(WPNG).c writepng.h
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readpng$(O) readpng.pic$(O): readpng.c readpng.h
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readpng2$(O) readpng2.pic$(O): readpng2.c readpng2.h
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writepng$(O) writepng.pic$(O): writepng.c writepng.h
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# maintenance ---------------------------------------------------------------
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$(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
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$(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)