[Qt-interest] Building Qt 4.4.3: linker errors LNK2019 w/ MSVC2003 on Windows

[Andreas Pakulat]

On 11.12.08 13:53:47, Robert Hairgrove wrote:
> I am trying to build the Qt libraries using the free MSVC 2003 toolkit. 
> The Microsoft link.exe cannot find the following symbol, the member 
> function QString::begin(), which is defined inline in <qstring.h>. Here 
> is the error message I get when the build process gets around to linking 
> the QCore4.dll:
> 
> ==== NMAKE output =====
> Generating Code...
>      	link /LIBPATH:"f:\Qt\4.4.3\lib" /LIBPATH:"f:\Qt\4.4.3\lib" /NOLOGO 
> /BASE
> :0x67000000 /INCREMENTAL:NO /DLL /VERSION:4.43 
> /OUT:..\..\lib\QtCore4.dll @F:\TE
> MP\nmA4.tmp
>     Creating library ..\..\lib\QtCore4.lib and object ..\..\lib\QtCore4.exp
> QtCore_pch.obj : error LNK2019: unresolved external symbol 
> "__declspec(dllimport
> ) public: unsigned short * __thiscall std::basic_string<unsigned 
> short,struct st
> d::char_traits<unsigned short>,class std::allocator<unsigned short> 
>  >::begin(voi
> d)" 
> (__imp_?begin@?$basic_string at GU?$char_traits at G@std@@V?$allocator at G@2@@std@@Q
> AEPAGXZ) referenced in function "public: class 
> std::basic_string<unsigned short,
> struct std::char_traits<unsigned short>,class std::allocator<unsigned 
> short> > _
> _thiscall QString::toStdWString(void)const " 
> (?toStdWString at QString@@QBE?AV?$bas
> ic_string at GU?$char_traits at G@std@@V?$allocator at G@2@@std@@XZ)
> ..\..\lib\QtCore4.dll : fatal error LNK1120: 1 unresolved externals
> NMAKE : fatal error U1077: 'link' : return code '0x460'
> Stop.
> NMAKE : fatal error U1077: 'F:\PSDK\Bin\nmake.exe' : return code '0x2'
> Stop.
> NMAKE : fatal error U1077: 'cd' : return code '0x2'
> Stop.
> ==== end NMAKE output ====
> 
> I have configured like this:
> 
> ==== config ====
> configure -platform win32-msvc2003 -release -no-webkit -qt-sql-odbc 
> -qt-sql-sqlite
> ==== end config ====
> 
> I have built Qt before successfully, both on Windows and on Linux (last 
> time was 4.3.0, also with this compiler). Also, if I use the /Zc:wchar_t 
> option (=wchar_t is a native type instead of a typedef) I get the same 
> error message except that basic_string<wchar_t ...etc....> instead of 
> basic_string<unsigned short ...etc...> is returned in the above error 
> message.
> 
> Both the missing function QString::begin() (returns a non-const 
> QString::iterator) and the calling function QString::toStdWString() are 
> inlined in the header qstring.h. Of course, both are defined. Is this 
> some limitation of the MSVC 2003 Toolkit compiler (AKA MSVC 7.1 for 
> .NET) regarding inline functions?

You're interpreting the error message incorrectly. What the linker doesn't
find is std::string::begin(), not QString::begin(). 

Andreas

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