1 # Makefile for PngMinus (pnm2pngm)
17 CFLAGS=-DPNG_USER_CONFIG -DZ_SOLO -DNO_GZIP -I. -O1
24 # Where to find the source code:
26 ZLIBSRC=$(PNGSRC)/../zlib
27 PROGSRC=$(PNGSRC)/contrib/pngminus
30 ZSRCS = adler32$(C) compress$(C) crc32$(C) deflate$(C) \
34 #ZH = zlib.h crc32.h deflate.h trees.h zutil.h
35 ZH = zlib.h crc32.h deflate.h trees.h zutil.h
37 # Machine generated headers
41 ZINC = zlib.h $(ZCONF)
43 # Headers the Zlib source uses
44 ZHDRS = $(ZH) $(ZCONF)
46 # compress is not required; it is needed to link the zlib
47 # code because deflate defines an unused API function deflateBound
48 # which itself calls compressBound from compress.
49 ZOBJS = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
53 PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
54 pngset$(C) pngtrans$(C) pngwio$(C) pngwrite$(C) \
55 pngwtran$(C) pngwutil$(C)
58 PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
60 # Machine generated headers
64 PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
66 # Headers the PNG library uses
67 PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
69 PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
70 pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
71 pngwtran$(O) pngwutil$(O)
73 PROGSRCS= pnm2pngm$(C)
76 PROGOBJS= pnm2pngm$(O)
78 OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
80 # implicit make rules -------------------------------------------------------
90 $(LD) -o pnm2pngm$(E) $(OBJS)
92 # The DFA_XTRA setting turns all libpng options off then
93 # turns on those required for this minimal build.
94 # The CPP_FLAGS setting causes pngusr.h to be included in
95 # both the build of pnglibconf.h and, subsequently, when
96 # building libpng itself.
97 $(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak\
98 $(PNGSRC)/scripts/pnglibconf.dfa \
99 $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
100 $(RM) pnglibconf.h pnglibconf.dfn
101 $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
102 srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG"\
103 DFA_XTRA="pngusr.dfa" $@
106 $(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
107 srcdir=$(PNGSRC) clean
112 # distclean also removes the copied source and headers
114 $(RM) -r scripts # historical reasons
115 $(RM) $(PNGSRCS) $(PNGH)
116 $(RM) $(ZSRCS) $(ZH) $(ZCONF)
117 $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
119 # Header file dependencies:
120 $(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
121 $(PNGOBJS): $(PNGHDRS) $(ZINC)
124 # Gather the source code from the respective directories
125 $(PNGSRCS) $(PNGH): $(PNGSRC)/$@
127 $(COPY) $(PNGSRC)/$@ $@
129 # No dependency on the ZLIBSRC target so that it only needs
130 # to be specified once.
133 $(COPY) $(ZLIBSRC)/$@ $@
135 # The unconfigured zconf.h varies in name according to the
139 @for f in zconf.h.in zconf.in.h zconf.h; do\
140 test -r $(ZLIBSRC)/$$f &&\
141 echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
142 $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
143 done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
145 pnm2pngm.c: $(PROGSRC)/pnm2png.c
147 $(COPY) $(PROGSRC)/pnm2png.c $@
149 # End of makefile for pnm2pngm