i found libgcc_s in : /usr/lib/gcc/i686-linux-gnu/4.6/libgcc_s.so /usr/lib/gcc/i486-linux-gnu/3.4.6/64/libgcc_s.so /usr/lib/gcc/i486-linux-gnu/3.4.6/64/libgcc_s_64.so /usr/lib/gcc/i486-linux-gnu/3.4.6/libgcc_s.so /usr/lib/gcc/i486-linux-gnu/3.4.6/libgcc_s_64.so /lib/i386-linux-gnu/libgcc_s.so.1
and i tried : cd /usr/lib/i386-linux-gnu sudo ln -s /usr/lib/gcc/i486-linux-gnu/3.4.6/libgcc_s.so libgcc_s.so but i still get the same error -- View this message in context: http://old.nabble.com/installing-an-older-version-of-g%2B%2B-on-ubuntu-12.04-tp33971892p33972157.html Sent from the gcc - Dev mailing list archive at Nabble.com.