# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
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# Greg Roelofs
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# Last modified: 7 March 2002
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#
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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? Buy some for friends
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# and family, too. (Not that this is a blatant plug or anything.)
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#
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# Invoke this makefile from a shell prompt in the usual way; for example:
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#
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# make -f Makefile.sgi
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#
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# This makefile assumes libpng and zlib have already been built or downloaded
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# and are both installed in /usr/local/{include,lib} (as indicated by the
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# PNG* and Z* macros below). Edit as appropriate--choose only ONE each of
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# the PNGINC, PNGLIB, ZINC and ZLIB lines.
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#
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# This makefile builds dynamically linked executables (against libpng and zlib,
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# that is), but that can be changed by uncommenting the appropriate PNGLIB and
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# ZLIB lines.
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# macros --------------------------------------------------------------------
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PNGINC = -I/usr/local/include/libpng16
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PNGLIB = -L/usr/local/lib -lpng16 # dynamically linked against libpng
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#PNGLIB = /usr/local/lib/libpng16.a # statically linked against libpng
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# or:
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#PNGINC = -I../..
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#PNGLIB = -L../.. -lpng
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#PNGLIB = ../../libpng.a
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ZINC = -I/usr/local/include
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ZLIB = -L/usr/local/lib -lz # dynamically linked against zlib
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#ZLIB = /usr/local/lib/libz.a # statically linked against zlib
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#ZINC = -I../zlib
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#ZLIB = -L../zlib -lz
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#ZLIB = ../../../zlib/libz.a
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XINC = -I/usr/include/X11 # old-style, stock X distributions
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XLIB = -L/usr/lib/X11 -lX11
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#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
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#XLIB = -L/usr/openwin/lib -lX11
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#XINC = -I/usr/X11R6/include # new X distributions (XFree86, etc.)
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#XLIB = -L/usr/X11R6/lib -lX11
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INCS = $(PNGINC) $(ZINC) $(XINC)
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RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
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WLIBS = $(PNGLIB) $(ZLIB)
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CC = cc
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LD = cc
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RM = rm -f
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# ABI must be the same as that used to build libpng.
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ABI =
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CPPFLAGS =
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CFLAGS = $(ABI) -O -fullwarn $(INCS)
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LDFLAGS = $(ABI)
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O = .o
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E =
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RPNG = rpng-x
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RPNG2 = rpng2-x
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WPNG = wpng
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ROBJS = $(RPNG)$(O) readpng$(O)
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ROBJS2 = $(RPNG2)$(O) readpng2$(O)
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WOBJS = $(WPNG)$(O) writepng$(O)
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EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
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# implicit make rules -------------------------------------------------------
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.c$(O):
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$(CC) -c $(CPPFLAGS) $(CFLAGS) $<
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# dependencies --------------------------------------------------------------
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all: $(EXES)
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$(RPNG)$(E): $(ROBJS)
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$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
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$(RPNG2)$(E): $(ROBJS2)
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$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
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$(WPNG)$(E): $(WOBJS)
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$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
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$(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.c readpng.h
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readpng2$(O): readpng2.c readpng2.h
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writepng$(O): writepng.c writepng.h
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# maintenance ---------------------------------------------------------------
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clean:
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$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
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