On 19 April 2011 14:21, Ian Lance Taylor wrote: > Qi Zuo <bitsunnyday@gmail.com> writes: > >> Following your instruction, I checked the libstdc++.so. But I don't >> know whether I've done the right check. > > It looks right. This is a strange problem. Shouldn't this be global? 000e13e0 b _ZSt4cout