[Bug other/91879] --with-build-time-tools doesn't work as expected

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91879

--- Comment #33 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
It can be useful to have the fully-prefixed host tools (but you don't need 
to, you can also make your build system set all the variables such as CC 
and CXX that are needed for the host).