Re: Readonly shell variables containing newlines break caching

[Eric Blake]

On 08/03/2016 06:19 PM, Quinn Grier wrote:
> It appears that a configure script tries to unset all shell variables
> that contain newlines in a subshell as part of the caching code. This
> causes the subshell to exit early if any of the variables is readonly.

Autoconf in general is not expecting readonly variables, so it may be a 
very difficult task to clean it up to work nicely with such a 
restrictive environment.  Patches are welcome, but since the obvious 
solution is "don't use readonly variables in an autoconf script", I'm 
probably not going to be the one to write such patches.

--
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org