Re: make: compilation firewall

[email protected] (Paul Jarc) Fri, 16 Feb 2007 15:45:08 -0500

Newsgroups	gmane.comp.gnu.utils
Organization	What did you have in mind? A short, blunt, human pyramid?
Message-ID	<[email protected]>

"Michael" <[email protected]> wrote:
> out.h out.cc: in.our_format generate
>      generate -i in.our_format -o tmp
>      if (tmp.h != out.h OR tmp.cc != out.cc) {
>          cp tmp.h out.h
>          cp tmp.cc out.cc
>      }

	if { cmp tmp.h out.h && cmp tmp.cc out.cc; } > /dev/null 2>&1; \
	  then :; \
	  else cp tmp.h out.h && cp tmp.cc out.cc; \
	fi

You could also incorporate this conditional update into generate
itself, to keep the Makefile simpler.


paul