1# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
  2# Greg Roelofs
  3# Last modified:  7 March 2002
  4#
  5#	The programs built by this makefile are described in the book,
  6#	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
  7#	Associates, 1999).  Go buy a copy, eh?  Buy some for friends
  8#	and family, too.  (Not that this is a blatant plug or anything.)
  9#
 10# Invoke this makefile from a shell prompt in the usual way; for example:
 11#
 12#	make -f Makefile.sgi
 13#
 14# This makefile assumes libpng and zlib have already been built or downloaded
 15# and are both installed in /usr/local/{include,lib} (as indicated by the
 16# PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of
 17# the PNGINC, PNGLIB, ZINC and ZLIB lines.
 18#
 19# This makefile builds dynamically linked executables (against libpng and zlib,
 20# that is), but that can be changed by uncommenting the appropriate PNGLIB and
 21# ZLIB lines.
 22
 23
 24# macros --------------------------------------------------------------------
 25
 26PNGINC = -I/usr/local/include/libpng16
 27PNGLIB = -L/usr/local/lib -lpng16	  # dynamically linked against libpng
 28#PNGLIB = /usr/local/lib/libpng16.a # statically linked against libpng
 29# or:
 30#PNGINC = -I../..
 31#PNGLIB = -L../.. -lpng
 32#PNGLIB = ../../libpng.a
 33
 34ZINC = -I/usr/local/include
 35ZLIB = -L/usr/local/lib -lz		# dynamically linked against zlib
 36#ZLIB = /usr/local/lib/libz.a		# statically linked against zlib
 37#ZINC = -I../zlib
 38#ZLIB = -L../zlib -lz
 39#ZLIB = ../../../zlib/libz.a
 40
 41XINC = -I/usr/include/X11		# old-style, stock X distributions
 42XLIB = -L/usr/lib/X11 -lX11
 43#XINC = -I/usr/openwin/include    	# Sun workstations (OpenWindows)
 44#XLIB = -L/usr/openwin/lib -lX11
 45#XINC = -I/usr/X11R6/include		# new X distributions (XFree86, etc.)
 46#XLIB = -L/usr/X11R6/lib -lX11
 47
 48INCS = $(PNGINC) $(ZINC) $(XINC)
 49RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
 50WLIBS = $(PNGLIB) $(ZLIB)
 51
 52CC = cc
 53LD = cc
 54RM = rm -f
 55# ABI must be the same as that used to build libpng.
 56ABI =
 57CPPFLAGS =
 58CFLAGS = $(ABI) -O -fullwarn $(INCS)
 59LDFLAGS = $(ABI)
 60O = .o
 61E =
 62
 63RPNG  = rpng-x
 64RPNG2 = rpng2-x
 65WPNG  = wpng
 66
 67ROBJS  = $(RPNG)$(O) readpng$(O)
 68ROBJS2 = $(RPNG2)$(O) readpng2$(O)
 69WOBJS  = $(WPNG)$(O) writepng$(O)
 70
 71EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
 72
 73
 74# implicit make rules -------------------------------------------------------
 75
 76.c$(O):
 77	$(CC) -c $(CPPFLAGS) $(CFLAGS) $<
 78
 79
 80# dependencies --------------------------------------------------------------
 81
 82all:  $(EXES)
 83
 84$(RPNG)$(E): $(ROBJS)
 85	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
 86
 87$(RPNG2)$(E): $(ROBJS2)
 88	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
 89
 90$(WPNG)$(E): $(WOBJS)
 91	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
 92
 93$(RPNG)$(O):	$(RPNG).c readpng.h
 94$(RPNG2)$(O):	$(RPNG2).c readpng2.h
 95$(WPNG)$(O):	$(WPNG).c writepng.h
 96
 97readpng$(O):	readpng.c readpng.h
 98readpng2$(O):	readpng2.c readpng2.h
 99writepng$(O):	writepng.c writepng.h
100
101
102# maintenance ---------------------------------------------------------------
103
104clean:
105	$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)