| 1 | # Makefile for PngMinus (pnm2pngm)
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| 2 | # Linux / Unix
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| 3 |
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| 4 | #CC=cc
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| 5 | CC=gcc
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| 6 | LD=$(CC)
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| 7 |
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| 8 | # If awk fails try
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| 9 | # make AWK=nawk
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| 10 |
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| 11 | # If cpp fails try
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| 12 | # make CPP=/lib/cpp
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| 13 |
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| 14 | RM=rm -f
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| 15 | COPY=cp
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| 16 |
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| 17 | CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
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| 18 | CFLAGS=-O1 -Wall
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| 19 |
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| 20 | C=.c
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| 21 | O=.o
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| 22 | L=.a
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| 23 | E=
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| 24 |
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| 25 | # Where to find the source code:
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| 26 | PNGSRC =../../..
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| 27 | ZLIBSRC=$(PNGSRC)/../zlib
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| 28 | PROGSRC=$(PNGSRC)/contrib/pngminus
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| 29 |
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| 30 | # Zlib
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| 31 | ZSRCS = adler32$(C) compress$(C) crc32$(C) deflate$(C) \
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| 32 | trees$(C) zutil$(C)
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| 33 |
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| 34 | # Standard headers
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| 35 | #ZH = zlib.h crc32.h deflate.h trees.h zutil.h
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| 36 | ZH = zlib.h crc32.h deflate.h trees.h zutil.h
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| 37 |
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| 38 | # Machine generated headers
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| 39 | ZCONF = zconf.h
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| 40 |
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| 41 | # Headers callers use
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| 42 | ZINC = zlib.h $(ZCONF)
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| 43 |
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| 44 | # Headers the Zlib source uses
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| 45 | ZHDRS = $(ZH) $(ZCONF)
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| 46 |
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| 47 | # compress is not required; it is needed to link the zlib
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| 48 | # code because deflate defines an unused API function deflateBound
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| 49 | # which itself calls compressBound from compress.
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| 50 | ZOBJS = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
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| 51 | trees$(O) zutil$(O)
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| 52 |
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| 53 | # libpng
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| 54 | PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
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| 55 | pngset$(C) pngtrans$(C) pngwio$(C) pngwrite$(C) \
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| 56 | pngwtran$(C) pngwutil$(C)
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| 57 |
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| 58 | # Standard headers
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| 59 | PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
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| 60 |
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| 61 | # Machine generated headers
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| 62 | PNGCONF=pnglibconf.h
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| 63 |
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| 64 | # Headers callers use
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| 65 | PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
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| 66 |
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| 67 | # Headers the PNG library uses
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| 68 | PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
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| 69 |
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| 70 | PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
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| 71 | pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
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| 72 | pngwtran$(O) pngwutil$(O)
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| 73 |
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| 74 | PROGSRCS= pnm2pngm$(C)
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| 75 | PROGHDRS=
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| 76 | PROGDOCS=
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| 77 | PROGOBJS= pnm2pngm$(O)
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| 78 |
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| 79 | OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
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| 80 |
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| 81 | # implicit make rules -------------------------------------------------------
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| 82 |
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| 83 | .c$(O):
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| 84 | $(CC) -c $(CPPFLAGS) $(CFLAGS) $<
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| 85 |
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| 86 | # dependencies
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| 87 |
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| 88 | all: pnm2pngm$(E)
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| 89 |
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| 90 | pnm2pngm$(E): $(OBJS)
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| 91 | $(LD) -o pnm2pngm$(E) $(OBJS)
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| 92 |
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| 93 | # The DFA_XTRA setting turns all libpng options off then
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| 94 | # turns on those required for this minimal build.
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| 95 | # The CPP_FLAGS setting causes pngusr.h to be included in
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| 96 | # both the build of pnglibconf.h and, subsequently, when
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| 97 | # building libpng itself.
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| 98 | $(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
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| 99 | $(PNGSRC)/scripts/pnglibconf.dfa \
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| 100 | $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
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| 101 | $(RM) pnglibconf.h pnglibconf.dfn
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| 102 | $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
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| 103 | srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
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| 104 | DFA_XTRA="pngusr.dfa" $@
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| 105 |
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| 106 | clean:
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| 107 | $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\
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| 108 | srcdir=$(PNGSRC) clean
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| 109 | $(RM) pnm2pngm$(O)
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| 110 | $(RM) pnm2pngm$(E)
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| 111 | $(RM) $(OBJS)
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| 112 |
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| 113 | # distclean also removes the copied source and headers
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| 114 | distclean: clean
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| 115 | $(RM) -r scripts # historical reasons
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| 116 | $(RM) $(PNGSRCS) $(PNGH)
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| 117 | $(RM) $(ZSRCS) $(ZH) $(ZCONF)
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| 118 | $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
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| 119 |
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| 120 | # Header file dependencies:
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| 121 | $(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
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| 122 | $(PNGOBJS): $(PNGHDRS) $(ZINC)
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| 123 | $(ZOBJS): $(ZHDRS)
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| 124 |
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| 125 | # Gather the source code from the respective directories
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| 126 | $(PNGSRCS) $(PNGH): $(PNGSRC)/$@
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| 127 | $(RM) $@
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| 128 | $(COPY) $(PNGSRC)/$@ $@
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| 129 |
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| 130 | # No dependency on the ZLIBSRC target so that it only needs
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| 131 | # to be specified once.
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| 132 | $(ZSRCS) $(ZH):
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| 133 | $(RM) $@
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| 134 | $(COPY) $(ZLIBSRC)/$@ $@
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| 135 |
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| 136 | # The unconfigured zconf.h varies in name according to the
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| 137 | # zlib release
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| 138 | $(ZCONF):
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| 139 | $(RM) $@
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| 140 | @for f in zconf.h.in zconf.in.h zconf.h; do\
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| 141 | test -r $(ZLIBSRC)/$$f &&\
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| 142 | echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
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| 143 | $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
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| 144 | done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
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| 145 |
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| 146 | pnm2pngm.c: $(PROGSRC)/pnm2png.c
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| 147 | $(RM) $@
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| 148 | $(COPY) $(PROGSRC)/pnm2png.c $@
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| 149 |
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| 150 | # End of makefile for pnm2pngm
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