1# Makefile for PngMinus (pnm2pngm) 2# Linux / Unix 3 4#CC=cc 5CC=gcc 6LD=$(CC) 7 8# If awk fails try 9# make AWK=nawk 10 11# If cpp fails try 12# make CPP=/lib/cpp 13 14RM=rm -f 15COPY=cp 16 17CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP 18CFLAGS=-O1 -Wall 19 20C=.c 21O=.o 22L=.a 23E= 24 25# Where to find the source code: 26PNGSRC =../../.. 27ZLIBSRC=$(PNGSRC)/../zlib 28PROGSRC=$(PNGSRC)/contrib/pngminus 29 30# Zlib 31ZSRCS = adler32$(C) compress$(C) crc32$(C) deflate$(C) \ 32 trees$(C) zutil$(C) 33 34# Standard headers 35#ZH = zlib.h crc32.h deflate.h trees.h zutil.h 36ZH = zlib.h crc32.h deflate.h trees.h zutil.h 37 38# Machine generated headers 39ZCONF = zconf.h 40 41# Headers callers use 42ZINC = zlib.h $(ZCONF) 43 44# Headers the Zlib source uses 45ZHDRS = $(ZH) $(ZCONF) 46 47# compress is not required; it is needed to link the zlib 48# code because deflate defines an unused API function deflateBound 49# which itself calls compressBound from compress. 50ZOBJS = adler32$(O) compress$(O) crc32$(O) deflate$(O) \ 51 trees$(O) zutil$(O) 52 53# libpng 54PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \ 55 pngset$(C) pngtrans$(C) pngwio$(C) pngwrite$(C) \ 56 pngwtran$(C) pngwutil$(C) 57 58# Standard headers 59PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h 60 61# Machine generated headers 62PNGCONF=pnglibconf.h 63 64# Headers callers use 65PNGINC= png.h pngconf.h pngusr.h $(PNGCONF) 66 67# Headers the PNG library uses 68PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h 69 70PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \ 71 pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \ 72 pngwtran$(O) pngwutil$(O) 73 74PROGSRCS= pnm2pngm$(C) 75PROGHDRS= 76PROGDOCS= 77PROGOBJS= pnm2pngm$(O) 78 79OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS) 80 81# implicit make rules ------------------------------------------------------- 82 83.c$(O): 84 $(CC) -c $(CPPFLAGS) $(CFLAGS) $< 85 86# dependencies 87 88all: pnm2pngm$(E) 89 90pnm2pngm$(E): $(OBJS) 91 $(LD) -o pnm2pngm$(E) $(OBJS) 92 93# The DFA_XTRA setting turns all libpng options off then 94# turns on those required for this minimal build. 95# The CPP_FLAGS setting causes pngusr.h to be included in 96# both the build of pnglibconf.h and, subsequently, when 97# building libpng itself. 98$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\ 99 $(PNGSRC)/scripts/pnglibconf.dfa \ 100 $(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa 101 $(RM) pnglibconf.h pnglibconf.dfn 102 $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\ 103 srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\ 104 DFA_XTRA="pngusr.dfa" $@ 105 106clean: 107 $(MAKE) -f $(PNGSRC)/scripts/pnglibconf.mak $(MAKEFLAGS)\ 108 srcdir=$(PNGSRC) clean 109 $(RM) pnm2pngm$(O) 110 $(RM) pnm2pngm$(E) 111 $(RM) $(OBJS) 112 113# distclean also removes the copied source and headers 114distclean: clean 115 $(RM) -r scripts # historical reasons 116 $(RM) $(PNGSRCS) $(PNGH) 117 $(RM) $(ZSRCS) $(ZH) $(ZCONF) 118 $(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS) 119 120# Header file dependencies: 121$(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC) 122$(PNGOBJS): $(PNGHDRS) $(ZINC) 123$(ZOBJS): $(ZHDRS) 124 125# Gather the source code from the respective directories 126$(PNGSRCS) $(PNGH): $(PNGSRC)/$@ 127 $(RM) $@ 128 $(COPY) $(PNGSRC)/$@ $@ 129 130# No dependency on the ZLIBSRC target so that it only needs 131# to be specified once. 132$(ZSRCS) $(ZH): 133 $(RM) $@ 134 $(COPY) $(ZLIBSRC)/$@ $@ 135 136# The unconfigured zconf.h varies in name according to the 137# zlib release 138$(ZCONF): 139 $(RM) $@ 140 @for f in zconf.h.in zconf.in.h zconf.h; do\ 141 test -r $(ZLIBSRC)/$$f &&\ 142 echo $(COPY) $(ZLIBSRC)/$$f $@ &&\ 143 $(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\ 144 done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1 145 146pnm2pngm.c: $(PROGSRC)/pnm2png.c 147 $(RM) $@ 148 $(COPY) $(PROGSRC)/pnm2png.c $@ 149 150# End of makefile for pnm2pngm 151