[Bug libgcc/66809] stage 1 build failure in libgcc on sparc-sun-solaris2.10

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66809

--- Comment #3 from Mikael Pettersson <mikpelinux at gmail dot com> ---
The --with-gmp= etc options work for include files and static link libraries.
but do nothing for shared libraries.