Someone

new -fno-common  -MT mspinbox.o -MD -MP -MF ".deps/mspinbox.Tpo" -c -o mspinbox.o mspinbox.cpp; \
        then mv -f ".deps/mspinbox.Tpo" ".deps/mspinbox.Po"; else rm -f ".deps/mspinbox.Tpo"; exit 1; fi
mspinbox.cpp: In member function `virtual int MSpinBox::mapTextToValue(bool*)':
mspinbox.cpp:253: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp:254: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp:255: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp:256: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp:257: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp:258: error: call of overloaded `basic_string(QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
mspinbox.cpp: In member function `void
   MSpinBox::setFPConstants(FunctionParser&)':
mspinbox.cpp:382: error: call of overloaded `basic_string(const QString&)' is
   ambiguous
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:226: error: candidates
   are: std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*,
   const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc
   = std::allocator<char>]
/opt/gcc-3.3/include/c++/3.3.6/bits/basic_string.tcc:192: error:
    std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const
   std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits =
   std::char_traits<char>, _Alloc = std::allocator<char>]
make[3]: *** [mspinbox.o] Error 1