D:\cpp>g++ hello.cc Info: resolving std::cout by linking to __imp___ZSt4cout (auto-import) c:/mingw/bin/../lib/gcc/mingw32/4.5.0/../../../../mingw32/bin/ld.exe: warning: auto-importing has been activated without --enable-auto-import specified on the command line. This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.
gcc下执行时报此错 加参：
g++ -enable-auto-import hello.cc