[Bug other/67092] bootstrap failure in running genpreds, libstdc++ version mismatch

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67092

--- Comment #8 from vries at gcc dot gnu.org ---
(In reply to vries from comment #7)
> I start to suspect it's related to this configure bit:
> ...
> --with-host-libstdcxx=-L/usr/local/tools/gcc-4.7.3/lib64 -static-libgcc
> -Wl,-Bstatic,-lstdc++,-Bdynamic -lm
> ...
> 

full configure:
...
Using built-in specs.
COLLECT_GCC=./obj/gcc-mainline-0-x86_64-unknown-linux-gnu-x86_64-unknown-linux-gnu/prev-gcc/xgcc
Target: x86_64-unknown-linux-gnu
Configured with: src/gcc-mainline/configure --build=x86_64-unknown-linux-gnu
--host=x86_64-unknown-linux-gnu --target=x86_64-unknown-linux-gnu
--enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch
--disable-multilib --with-gnu-as --with-gnu-ld --enable-languages=c,c++
--enable-shared --enable-lto --disable-nls --prefix=install
--with-gmp=obj/pkg-mainline-0-x86_64-unknown-linux-gnu/fsf-mainline-0-x86_64-unknown-linux-gnu.extras/host-libs-x86_64-unknown-linux-gnu/usr
--with-mpfr=obj/pkg-mainline-0-x86_64-unknown-linux-gnu/fsf-mainline-0-x86_64-unknown-linux-gnu.extras/host-libs-x86_64-unknown-linux-gnu/usr
--with-mpc=obj/pkg-mainline-0-x86_64-unknown-linux-gnu/fsf-mainline-0-x86_64-unknown-linux-gnu.extras/host-libs-x86_64-unknown-linux-gnu/usr
--with-host-libstdcxx='-L/usr/local/tools/gcc-4.7.3/lib64 -static-libgcc
-Wl,-Bstatic,-lstdc++,-Bdynamic -lm'
--with-isl=obj/pkg-mainline-0-x86_64-unknown-linux-gnu/fsf-mainline-0-x86_64-unknown-linux-gnu.extras/host-libs-x86_64-unknown-linux-gnu/usr
--enable-libgomp --enable-libitm --enable-libatomic --disable-libssp
--with-build-time-tools=install/x86_64-unknown-linux-gnu/bin
--with-build-time-tools=install/x86_64-unknown-linux-gnu/bin SED=sed
Thread model: posix
gcc version 6.0.0 20150801 (experimental) (GCC) 
...