[Bug lto/78795] LTO causes undefined reference errors when linking with GMP "make check"

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78795

--- Comment #6 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
Hmm... I can see the changes in the GCC 4.9 release notes. Something not
obvious (the last time I had tested LTO was with GCC 4.8). And I would have
expected libtool to select the right ar/ranlib/nm tools, but that's a libtool
issue.