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)
106