Hi, I have installed libc6-gdb libc6 libc6-dev-i386 package and after recompiling nothing is changed. > The usual "look where did the smoke rise" methods should help also > in this case so looking at the 'config.log' in the : > > $BUILD/$target/libstdc++-v3/src/debug > > should tell where and when the smoke appeared... Inside this folder there is no config.log: this file is present in $BUILD/$target/libstdc++-v3. But I can't find nothing related to the error. So now I'm trying to compile without --enable-libstdcxx-debug. Salvatore