|  | # Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make. | 
|  | # Greg Roelofs | 
|  | # Last modified:  7 March 2002 | 
|  | # | 
|  | #	The programs built by this makefile are described in the book, | 
|  | #	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and | 
|  | #	Associates, 1999).  Go buy a copy, eh?  Buy some for friends | 
|  | #	and family, too.  (Not that this is a blatant plug or anything.) | 
|  | # | 
|  | # Invoke this makefile from a shell prompt in the usual way; for example: | 
|  | # | 
|  | #	make -f Makefile.sgi | 
|  | # | 
|  | # This makefile assumes libpng and zlib have already been built or downloaded | 
|  | # and are both installed in /usr/local/{include,lib} (as indicated by the | 
|  | # PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of | 
|  | # the PNGINC, PNGLIB, ZINC and ZLIB lines. | 
|  | # | 
|  | # This makefile builds dynamically linked executables (against libpng and zlib, | 
|  | # that is), but that can be changed by uncommenting the appropriate PNGLIB and | 
|  | # ZLIB lines. | 
|  |  | 
|  |  | 
|  | # macros -------------------------------------------------------------------- | 
|  |  | 
|  | PNGINC = -I/usr/local/include/libpng14 | 
|  | PNGLIB = -L/usr/local/lib -lpng14	  # dynamically linked against libpng | 
|  | #PNGLIB = /usr/local/lib/libpng14.a # statically linked against libpng | 
|  | # or: | 
|  | #PNGINC = -I../.. | 
|  | #PNGLIB = -L../.. -lpng | 
|  | #PNGLIB = ../../libpng.a | 
|  |  | 
|  | ZINC = -I/usr/local/include | 
|  | ZLIB = -L/usr/local/lib -lz		# dynamically linked against zlib | 
|  | #ZLIB = /usr/local/lib/libz.a		# statically linked against zlib | 
|  | #ZINC = -I../zlib | 
|  | #ZLIB = -L../zlib -lz | 
|  | #ZLIB = ../../../zlib/libz.a | 
|  |  | 
|  | XINC = -I/usr/include/X11		# old-style, stock X distributions | 
|  | XLIB = -L/usr/lib/X11 -lX11 | 
|  | #XINC = -I/usr/openwin/include    	# Sun workstations (OpenWindows) | 
|  | #XLIB = -L/usr/openwin/lib -lX11 | 
|  | #XINC = -I/usr/X11R6/include		# new X distributions (XFree86, etc.) | 
|  | #XLIB = -L/usr/X11R6/lib -lX11 | 
|  |  | 
|  | INCS = $(PNGINC) $(ZINC) $(XINC) | 
|  | RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm | 
|  | WLIBS = $(PNGLIB) $(ZLIB) | 
|  |  | 
|  | CC = cc | 
|  | LD = cc | 
|  | RM = rm -f | 
|  | # ABI must be the same as that used to build libpng. | 
|  | ABI= | 
|  | CFLAGS = $(ABI) -O -fullwarn $(INCS) | 
|  | LDFLAGS = $(ABI) | 
|  | O = .o | 
|  | E = | 
|  |  | 
|  | RPNG  = rpng-x | 
|  | RPNG2 = rpng2-x | 
|  | WPNG  = wpng | 
|  |  | 
|  | ROBJS  = $(RPNG)$(O) readpng$(O) | 
|  | ROBJS2 = $(RPNG2)$(O) readpng2$(O) | 
|  | WOBJS  = $(WPNG)$(O) writepng$(O) | 
|  |  | 
|  | EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E) | 
|  |  | 
|  |  | 
|  | # implicit make rules ------------------------------------------------------- | 
|  |  | 
|  | .c$(O): | 
|  | $(CC) -c $(CFLAGS) $< | 
|  |  | 
|  |  | 
|  | # dependencies -------------------------------------------------------------- | 
|  |  | 
|  | all:  $(EXES) | 
|  |  | 
|  | $(RPNG)$(E): $(ROBJS) | 
|  | $(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS) | 
|  |  | 
|  | $(RPNG2)$(E): $(ROBJS2) | 
|  | $(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS) | 
|  |  | 
|  | $(WPNG)$(E): $(WOBJS) | 
|  | $(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS) | 
|  |  | 
|  | $(RPNG)$(O):	$(RPNG).c readpng.h | 
|  | $(RPNG2)$(O):	$(RPNG2).c readpng2.h | 
|  | $(WPNG)$(O):	$(WPNG).c writepng.h | 
|  |  | 
|  | readpng$(O):	readpng.c readpng.h | 
|  | readpng2$(O):	readpng2.c readpng2.h | 
|  | writepng$(O):	writepng.c writepng.h | 
|  |  | 
|  |  | 
|  | # maintenance --------------------------------------------------------------- | 
|  |  | 
|  | clean: | 
|  | $(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS) |