Re: GNU M4 1.4.15 uses a buggy replacement strstr...

[Akim Demaille]

Hi Jeffrey,

> Le 9 janv. 2021 à 13:56, Jeffrey Walton <noloader@gmail.com> a écrit :
> 
> Hi Everyone,
> 
> I'm trying to update Bison on Solaris 11.3. Configure is failing with:
> 
> checking for GNU M4 that supports accurate traces... configure: error:
> no acceptable m4 could be found in $PATH.
> GNU M4 1.4.6 or later is required; 1.4.16 or newer is recommended.
> GNU M4 1.4.15 uses a buggy replacement strstr on some systems.
> Glibc 2.9 - 2.12 and GNU M4 1.4.11 - 1.4.15 have another strstr bug.
> 
> Gnulib has strstr. Perhaps you can use it instead of spending time
> with the old or buggy versions. Also see
> https://www.gnu.org/software/gnulib/manual/gnulib.html#c_002dstrstr.

Exactly.  So please, install a version of m4 that uses a version
of gnulib recent enough.  Follow the advice and install the latest
version of M4.

Cheers!