Hi, Would you tell me is there way to find description about g++ compiler error code? For example when I am building XCODE project from command line I am getting such error: ld: in TestCppDynamicLibrary.xcodeproj , can't map file, errno=22 collect2: ld returned 1 exit status Where can I get description about error with number 22? p.s. I am building xcode project from console because error provided by xcode even less informative: "Command /Developer/usr/bin/gcc- 4.0 failed with exit code 1" Best regards, Denis