kc3-lang/libpng/scripts/pnglibconf.mak

Branch - branch -libpng16libpng17

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• Hash : 8b7b99c1
  Author :
  Date : 2022-09-14T11:53:47
  

  scripts: Clean up the logging in makefile.std and pnglibconf.mak
  
  The console logs produced by these scripts should be easy to follow,
  especially on CI bots.
  
  Delete the unnecessary macros ECHO and SED.
  Add a new macro MV_F (for "mv -f"), alongside RM_F (for "rm -f").
  

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• scripts/pnglibconf.mak

• #!/usr/bin/make -f
  # pnglibconf.mak - standard make lines for pnglibconf.h
  #
  # These lines are copied from Makefile.am, they illustrate
  # how to automate the build of pnglibconf.h from scripts/pnglibconf.dfa
  # given just 'awk', a C preprocessor and standard command line utilities
  
  # Override as appropriate, these definitions can be overridden on
  # the make command line (AWK='nawk' for example).
  AWK = gawk
  AWK = mawk
  AWK = nawk
  AWK = one-true-awk
  AWK = awk      # This fails on SunOS 5.10; use 'nawk'
  CPP = $(CC) -E # If this fails on SunOS 5.10, use '/lib/cpp'
  
  MOVE = mv -f
  DELETE = rm -f
  
  DFA_XTRA = # Put your configuration file here, see scripts/pnglibconf.dfa.  Eg:
  # DFA_XTRA = pngusr.dfa
  
  # CPPFLAGS should contain the options to control the result,
  # but DEFS and CFLAGS are also supported here, override
  # as appropriate
  DFNFLAGS = $(DEFS) $(CPPFLAGS) $(CFLAGS)
  
  # srcdir is a de-facto standard for the location of the source
  srcdir = .
  
  # The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
  # copy this if the following doesn't work.
  pnglibconf.h: pnglibconf.dfn
  	$(DELETE) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp
  	echo '#include "pnglibconf.dfn"' >pnglibconf.c
  	@echo "## If '$(CC) -E' fails, try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
  	$(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out
  	$(AWK) -f $(srcdir)/scripts/dfn.awk out=pnglibconf.tmp pnglibconf.out >&2
  	$(MOVE) pnglibconf.tmp $@
  
  pnglibconf.dfn: $(srcdir)/scripts/pnglibconf.dfa $(srcdir)/scripts/options.awk $(srcdir)/pngconf.h $(srcdir)/pngusr.dfa $(DFA_XTRA)
  	$(DELETE) $@ pnglibconf.pre pnglibconf.tmp
  	@echo "## Calling $(AWK) from scripts/pnglibconf.mak" >&2
  	@echo "## If 'awk' fails, try a better awk (e.g. AWK='nawk')" >&2
  	$(AWK) -f $(srcdir)/scripts/options.awk out=pnglibconf.pre\
  	    version=search $(srcdir)/pngconf.h $(srcdir)/scripts/pnglibconf.dfa\
  	    $(srcdir)/pngusr.dfa $(DFA_XTRA) >&2
  	$(AWK) -f $(srcdir)/scripts/options.awk out=pnglibconf.tmp pnglibconf.pre >&2
  	$(MOVE) pnglibconf.tmp $@
  
  clean-pnglibconf:
  	$(DELETE) pnglibconf.h pnglibconf.c pnglibconf.out pnglibconf.pre \
  	pnglibconf.dfn
  
  clean: clean-pnglibconf
  

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