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

[Isaac D. <id...@la...>]

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...>