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我将系统从10.8升级到10.9,并相应地将xcode从5.0升级到5.0.1。小牛/ xcode5.0.1如何更改编译器和链接器?
,当我尝试运行我的构建的一部分,结合多个.a文件到一个单一的,更大的,共享库我奖励:
Undefined symbols for architecture x86_64:
"__ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE13find_first_ofEPKcmm", referenced from:
__ZN2bt3fst12FstLookupSet14loadFromStringERKNSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEESA_ in libbtfst.a(bt_fst_factory.o)
这一问题的象征,过滤,就是:
__ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE13find_first_ofEPKcmm
std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::find_first_of(char const*, unsigned long, unsigned long) const
的链接命令行的样子:
libtool -macosx_version_min 10.6 -headerpad_max_install_names -dynamic -multiply_defined suppress -install_name `basename ../../../../rlp/lib/amd64-darwin12-xcode5/libbtutils.dylib` -o ../../../../rlp/lib/amd64-darwin12-xcode5/libbtutils.dylib -g <long list of .a files> -lstdc++.6 -lSystem