Re: two undefined behaviour occurrences in m4

On Sat, Dec 02, 2023 at 06:41:17AM +0100, Bruno Haible wrote:
> Hi,
> 
> After fixing the Gnulib bug reported at
>   <https://lists.gnu.org/archive/html/bug-m4/2023-02/msg00000.html>
> I wanted to check whether the newest m4 snapshot passes its tests
> with
>   CC="clang -fsanitize=address,undefined,signed-integer-overflow,shift,integer-divide-by-zero -fsanitize-address-use-after-scope -fno-sanitize-recover=all"
> And it doesn't. There are two problems:
> 

> Find attached a patch that fixes both issues.

Thanks.  I reformatted it with 'make indent' and pushed.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.
Virtualization:  qemu.org | libguestfs.org