1# Sample makefile for rpng-x / rpng2-x / wpng using gcc and make.
2# Greg Roelofs
3# Last modified:  2 June 2007
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?  Well, OK, it's not
8#	generally for sale anymore, but it's the thought that counts,
9#	right?  (Hint:  http://www.libpng.org/pub/png/book/ )
10#
11# Invoke this makefile from a shell prompt in the usual way; for example:
12#
13#	make -f Makefile.unx
14#
15# This makefile assumes libpng and zlib have already been built or downloaded
16# and are installed in /usr/local/{include,lib} or as otherwise indicated by
17# the PNG* and Z* macros below.  Edit as appropriate--choose only ONE each of
18# the PNGINC, PNGLIBd, PNGLIBs, ZINC, ZLIBd and ZLIBs lines.
19#
20# This makefile builds both dynamically and statically linked executables
21# (against libpng and zlib, that is), but that can be changed by modifying
22# the "EXES =" line.  (You need only one set, but for testing it can be handy
23# to have both.)
24
25
26# macros --------------------------------------------------------------------
27
28#PNGDIR = /usr/local/lib
29#PNGINC = -I/usr/local/include/libpng16
30#PNGLIBd = -L$(PNGDIR) -lpng16 # dynamically linked, installed libpng
31#PNGLIBs = $(PNGDIR)/libpng16.a # statically linked, installed libpng
32# or:
33PNGDIR = ../..#	this one is for libpng-x.y.z/contrib/gregbook builds
34#PNGDIR = ../libpng
35PNGINC = -I$(PNGDIR)
36PNGLIBd = -Wl,-rpath,$(PNGDIR) -L$(PNGDIR) -lpng16	# dynamically linked
37PNGLIBs = $(PNGDIR)/libpng.a		# statically linked, local libpng
38
39ZDIR = /usr/local/lib
40#ZDIR = /usr/lib64
41ZINC = -I/usr/local/include
42ZLIBd = -L$(ZDIR) -lz			# dynamically linked against zlib
43ZLIBs = $(ZDIR)/libz.a			# statically linked against zlib
44# or:
45#ZDIR = ../zlib
46#ZINC = -I$(ZDIR)
47#ZLIBd = -Wl,-rpath,$(ZDIR) -L$(ZDIR) -lz  # -rpath allows in-place testing
48#ZLIBs = $(ZDIR)/libz.a
49
50#XINC = -I/usr/include			# old-style, stock X distributions
51#XLIB = -L/usr/lib/X11 -lX11		#  (including SGI IRIX)
52#XINC = -I/usr/openwin/include		# Sun workstations (OpenWindows)
53#XLIB = -L/usr/openwin/lib -lX11
54XINC = -I/usr/X11R6/include		# new X distributions (X.org, etc.)
55XLIB = -L/usr/X11R6/lib -lX11
56#XLIB = -L/usr/X11R6/lib64 -lX11	# e.g., Red Hat on AMD64
57
58INCS = $(PNGINC) $(ZINC) $(XINC)
59RLIBSd = $(PNGLIBd) $(ZLIBd) $(XLIB) -lm
60RLIBSs = $(PNGLIBs) $(ZLIBs) $(XLIB) -lm
61WLIBSd = $(PNGLIBd) $(ZLIBd) -lm
62WLIBSs = $(PNGLIBs) $(ZLIBs) -lm
63
64CC = gcc
65LD = gcc
66RM = rm -f
67CPPFLAGS = $(INCS) -DFEATURE_LOOP
68CFLAGS = -O -Wall
69#CFLAGS = -O -W -Wall -Wextra -pedantic -ansi
70# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
71# [-ansi, -pedantic, -Wextra, and -W can also be used]
72LDFLAGS =
73O = .o
74E =
75
76RPNG   = rpng-x
77RPNG2  = rpng2-x
78WPNG   = wpng
79
80RPNGs  = $(RPNG)-static
81RPNG2s = $(RPNG2)-static
82WPNGs  = $(WPNG)-static
83
84ROBJS  = $(RPNG)$(O) readpng$(O)
85ROBJS2 = $(RPNG2)$(O) readpng2$(O)
86WOBJS  = $(WPNG)$(O) writepng$(O)
87
88STATIC_EXES  = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
89DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
90
91EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
92
93
94# implicit make rules -------------------------------------------------------
95
96.c$(O):
97	$(CC) -c $(CPPFLAGS) $(CFLAGS) $<
98
99
100# dependencies --------------------------------------------------------------
101
102all:  $(EXES)
103
104$(RPNGs)$(E): $(ROBJS)
105	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSs)
106
107$(RPNG)$(E): $(ROBJS)
108	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBSd)
109
110$(RPNG2s)$(E): $(ROBJS2)
111	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSs)
112
113$(RPNG2)$(E): $(ROBJS2)
114	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBSd)
115
116$(WPNGs)$(E): $(WOBJS)
117	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSs)
118
119$(WPNG)$(E): $(WOBJS)
120	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBSd)
121
122$(RPNG)$(O):	$(RPNG).c readpng.h
123$(RPNG2)$(O):	$(RPNG2).c readpng2.h
124$(WPNG)$(O):	$(WPNG).c writepng.h
125
126readpng$(O):	readpng.c readpng.h
127readpng2$(O):	readpng2.c readpng2.h
128writepng$(O):	writepng.c writepng.h
129
130
131# maintenance ---------------------------------------------------------------
132
133clean:
134	$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
135