[Bug other/61485] "Please use exactly Autoconf 2.64 instead of 2.69" due to hardcoded autoconf/autom4te

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61485

--- Comment #3 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
(In reply to Richard Biener from comment #1)
> Why would you do autoreconf?

With most projects, this is needed with svn working copies, otherwise some
files may become obsolete and one gets weird errors.

> The supported way of doing this is to put the exact versions in your PATH.

This would mean using a specific PATH to build GCC, which is bad.