151 lines
3.5 KiB
Makefile
151 lines
3.5 KiB
Makefile
# Makefile for PngMinus (pnm2pngm)
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# Linux / Unix
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#CC=cc
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CC=gcc
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LD=$(CC)
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# If awk fails try
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# make AWK=nawk
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# If cpp fails try
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# make CPP=/lib/cpp
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RM=rm -f
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COPY=cp
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CPPFLAGS=-I. -DPNG_USER_CONFIG -DNO_GZCOMPRESS -DZ_SOLO -DNO_GZIP
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CFLAGS=-O1
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C=.c
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O=.o
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L=.a
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E=
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# Where to find the source code:
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PNGSRC =../../..
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ZLIBSRC=$(PNGSRC)/../zlib
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PROGSRC=$(PNGSRC)/contrib/pngminus
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# Zlib
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ZSRCS = adler32$(C) compress$(C) crc32$(C) deflate$(C) \
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trees$(C) zutil$(C)
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# Standard headers
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#ZH = zlib.h crc32.h deflate.h trees.h zutil.h
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ZH = zlib.h crc32.h deflate.h trees.h zutil.h
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# Machine generated headers
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ZCONF = zconf.h
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# Headers callers use
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ZINC = zlib.h $(ZCONF)
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# Headers the Zlib source uses
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ZHDRS = $(ZH) $(ZCONF)
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# compress is not required; it is needed to link the zlib
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# code because deflate defines an unused API function deflateBound
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# which itself calls compressBound from compress.
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ZOBJS = adler32$(O) compress$(O) crc32$(O) deflate$(O) \
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trees$(O) zutil$(O)
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# libpng
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PNGSRCS=png$(C) pngerror$(C) pngget$(C) pngmem$(C) \
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pngset$(C) pngtrans$(C) pngwio$(C) pngwrite$(C) \
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pngwtran$(C) pngwutil$(C)
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# Standard headers
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PNGH =png.h pngconf.h pngdebug.h pnginfo.h pngpriv.h pngstruct.h
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# Machine generated headers
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PNGCONF=pnglibconf.h
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# Headers callers use
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PNGINC= png.h pngconf.h pngusr.h $(PNGCONF)
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# Headers the PNG library uses
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PNGHDRS=$(PNGH) $(PNGCONF) pngusr.h
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PNGOBJS=png$(O) pngerror$(O) pngget$(O) pngmem$(O) \
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pngset$(O) pngtrans$(O) pngwio$(O) pngwrite$(O) \
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pngwtran$(O) pngwutil$(O)
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PROGSRCS= pnm2pngm$(C)
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PROGHDRS=
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PROGDOCS=
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PROGOBJS= pnm2pngm$(O)
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OBJS = $(PROGOBJS) $(PNGOBJS) $(ZOBJS)
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# implicit make rules -------------------------------------------------------
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.c$(O):
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$(CC) $(CPPFLAGS) -c $(CFLAGS) $<
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# dependencies
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all: pnm2pngm$(E)
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pnm2pngm$(E): $(OBJS)
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$(LD) -o pnm2pngm$(E) $(OBJS)
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# The DFA_XTRA setting turns all libpng options off then
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# turns on those required for this minimal build.
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# The CPP_FLAGS setting causes pngusr.h to be included in
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# both the build of pnglibconf.h and, subsequently, when
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# building libpng itself.
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$(PNGCONF): $(PNGSRC)/scripts/pnglibconf.mak $(ZH)\
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$(PNGSRC)/scripts/pnglibconf.dfa \
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$(PNGSRC)/scripts/options.awk pngusr.h pngusr.dfa
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$(RM) pnglibconf.h pnglibconf.dfn
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$(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
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srcdir=$(PNGSRC) CPPFLAGS="-DPNG_USER_CONFIG -I."\
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DFA_XTRA="pngusr.dfa" $@
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clean:
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$(MAKE) $(MAKEFLAGS) -f $(PNGSRC)/scripts/pnglibconf.mak\
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srcdir=$(PNGSRC) clean
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$(RM) pnm2pngm$(O)
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$(RM) pnm2pngm$(E)
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$(RM) $(OBJS)
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# distclean also removes the copied source and headers
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distclean: clean
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$(RM) -r scripts # historical reasons
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$(RM) $(PNGSRCS) $(PNGH)
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$(RM) $(ZSRCS) $(ZH) $(ZCONF)
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$(RM) $(PROGSRCS) $(PROGHDRS) $(PROGDOCS)
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# Header file dependencies:
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$(PROGOBJS): $(PROGHDRS) $(PNGINC) $(ZINC)
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$(PNGOBJS): $(PNGHDRS) $(ZINC)
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$(ZOBJS): $(ZHDRS)
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# Gather the source code from the respective directories
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$(PNGSRCS) $(PNGH): $(PNGSRC)/$@
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$(RM) $@
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$(COPY) $(PNGSRC)/$@ $@
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# No dependency on the ZLIBSRC target so that it only needs
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# to be specified once.
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$(ZSRCS) $(ZH):
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$(RM) $@
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$(COPY) $(ZLIBSRC)/$@ $@
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# The unconfigured zconf.h varies in name according to the
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# zlib release
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$(ZCONF):
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$(RM) $@
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@for f in zconf.h.in zconf.in.h zconf.h; do\
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test -r $(ZLIBSRC)/$$f &&\
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echo $(COPY) $(ZLIBSRC)/$$f $@ &&\
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$(COPY) $(ZLIBSRC)/$$f $@ && exit 0;\
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done; echo copy: $(ZLIBSRC)/zconf.h not found; exit 1
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pnm2pngm.c: $(PROGSRC)/pnm2png.c
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$(RM) $@
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$(COPY) $(PROGSRC)/pnm2png.c $@
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# End of makefile for pnm2pngm
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