libstdc++.so: undefined reference to 불라불라

/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__towupper_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__freelocale'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__wcscoll_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__strcoll_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__wcsftime_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__strxfrm_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__wctype_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__iswctype_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__nl_langinfo_l'
/opt/TMO-Linux/buildroot/build_i386/staging_dir/lib/gcc/i386-linux-uclibc/3.4.6/../../../../i386-linux-uclibc/lib/libstdc++.so: undefined reference to `__strtold_l'


요딴 식의 에러 해결법

GCC버전 upgrade. 4.2.X로

근데, GCC를 업그레이드 하면 옛날 소스가 안돌아 간다. 니미.ㅠ