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  1. Qt
  2. QTBUG-26734

std::iostream errors with Mountain Lion

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Out of scope
    • Affects Version/s: 4.8.1, 4.8.4
    • Fix Version/s: None
    • Labels:
      None
    • Environment:
      Mountain Lion

      Description

      When compiling on Mountain Lion some std::iostream errors occur. A sample is below. This happens with gcc not clang. Initially I thought it was a change of compatibility in the version of gcc that ships with Xcode. But in a forum someone suggested changing the -mmacosx-version-min from 10.5 to 10.7 resolved the issue.

      ../CalcolatriceSensibile/mainTest.cpp: In instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’:
      ../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
      ../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’ but no definition available
      ../CalcolatriceSensibile/mainTest.cpp: In instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’:
      ../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
      ../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’ but no definition available
      ../CalcolatriceSensibile/mainTest.cpp: In instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’:
      ../CalcolatriceSensibile/mainTest.cpp:16: instantiated from here
      ../CalcolatriceSensibile/mainTest.cpp:16: error: explicit instantiation of ‘std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]’ but no definition available
      make: *** [mainTest.o] Error 1
      

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            Assignee:
            thiago Thiago Macieira
            Reporter:
            gosuperninja Tyler Conant
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              Updated:
              Resolved:

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