Re: [Flex-devel] Is GNU m4 really needed?

[Will E. <wes...@gm...>]

This is now in flex cvs.

--Will

On Thursday,  1 March 2012,  6:17 pm -0800, Isaac Dunham <id...@la...> wrote:

> On Fri, 24 Feb 2012 14:44:57 +0000
> Tim Landscheidt <ti...@ti...> wrote:
> > I replaced the test for GNU M4 with a feature test for "m4
> > -P" in the attached patch.  Could you try it out on NetBSD?
> > (You will have to regenerate "configure" with "autoconf".)
> 
> It builds with NetBSD m4, if autotools is absent (or non-executable!)
> If autotools is installed, autom4te will die because of the missing GNU M4.
> 
> What I did that worked:
> #gm4 is GNU m4
> #m4 is netbsd m4
> patch
> autoconf 			#requires gm4
> chmod -x /usr/bin/pkg/gm4 	#simulate no GNU m4
> #autotools needs GNU m4, and "missing" doesn't check beforehand
> #This scenario wouldn't happen without tinkering.
> chmod -x /usr/pkg/bin/auto*	
> /configure
> make
> 
> The steps up to chmod -x roughly correspond to creating a release; those 
> afterwards correspond to building from the tarball.
> So yes, it works for all sane configurations; it fails when you
> -install GNU M4
> -then install autotools
> -then remove gnu m4 (breaks autotools)
> 
> -- 
> Isaac Dunham <id...@la...>
> 
> 
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-- 
Will Estes (wl...@us...)
Flex Project Maintainer
http://flex.sourceforge.net/