2010/6/10 lulu he <loloseed@xxxxxxxxx>: > 2010/6/10 lulu he <loloseed@xxxxxxxxx>: >> 2010/6/9 Ian Lance Taylor <iant@xxxxxxxxxx>: >>> lulu he <loloseed@xxxxxxxxx> writes: >>> >>>> I made a mistake, The error message is : >>>> /usr/local/lib64/libstdc++.so: undefined reference to >>>> '_Unwind_GetIPInfo@xxxxxxxxx' >>>> >>>> and I soft link /usr/local/lib64/libstdc++.so TO >>>> /usr/local/gcc43/lib64/libstdc++.so, >>>> so it gcc43 is using the libstdc++.so in gcc43/lib64. >>>> ... >>> >>> Please reply to the mailing list, not just to me. >>> >>> The symbol Unwind_GetIPInfo@xxxxxxxxx should be defined in >>> libgcc_s.so. Perhaps you are somehow picking up the wrong version of >>> that library. >>> >>> Ian >>> >> >> Hi, lan >> >> That's right. >> g++ search .so in the /usr/local/lib64, instead of ..../gcc-4.3.3/lib64 , >> So I soft link all the .so in the /usr/local/lib64 TO ..../gcc-4.3.3/lib64 , >> and "g++ -o hello hello.cpp" works right now. >> >> What an awkward method! >> I have to soft link /usr/local/lib64/*.so back again if I wanna use >> another gcc version! >> >> Do u have another better solution to tell gcc search to search >> "..../gcc-4.3.3/lib64" directory by a global setting, >> not by "-L" option?? >> > > I have soft link /usr/local/lib64/libgcc_s.so TO > /usr/local/gcc-4.3.3/lib64/libgcc_s.so, > and > soft link /usr/local/lib64/libstdc++.so TO > /usr/local/gcc-4.3.3/lib64/libstdc++.so > but error is still reported: > /usr/local/lib64/libstdc++.so: undefined reference to > '_Unwind_GetIPInfo@xxxxxxxxx' > Hi lan, I use the nm command: nm libstdc++.so |grep _Unwind_GetIPInfo , it output "U _Unwind_GetIPInfo@xxxxxxxxx" but nm libgcc_s.so |grep _Unwind_GetIPInfo , it output "U _Unwind_GetIPInfo" that doesn't match , I doubt the error is here??? How i can fix that? Thanks.
