cmake problem under windows/mingw

[Ralf Habacker]

Christian Ehrlicher schrieb:
>> Hi,
>>
>> I've just tried to run cmake on kdelibs using mingw and got problems 
>> with QT4, I can't find the reason for.
>>   
>> C:\Daten\kde4\kdelibs\win>c:\Programme\CMake-2.3-KDE\bin\cmake.exe -G 
>> "MinGW Makefiles"  .
>> -- Check for working C compiler: c:/MinGW/bin/gcc.exe
>> -- Check for working C compiler: c:/MinGW/bin/gcc.exe -- works
>> -- Check size of void*
>> -- Check size of void* - done
>> -- Check for working CXX compiler: c:/MinGW/bin/g++.exe
>> -- Check for working CXX compiler: c:/MinGW/bin/g++.exe -- works
>> -- Found Qt-Version 4.1.0
>> CMake Error: This project requires some variables to be set,
>> and cmake can not find them.
>> Please set the following variables:
>> QT_QT3SUPPORT_LIBRARY (ADVANCED)
>> QT_QTCORE_LIBRARY (ADVANCED)
>>
>> -- Configuring done
>>
>>
>> Then I've tried with msys, the same problem
>>
>> $ /c/Programme/CMake-2.3-KDE/bin/cmake -G "MSYS Makefiles" .
>> -- Check for working C compiler: c:/mingw/bin/gcc.exe
>> -- Check for working C compiler: c:/mingw/bin/gcc.exe -- works
>> -- Check size of void*
>> -- Check size of void* - done
>> -- Check for working CXX compiler: c:/mingw/bin/g++.exe
>> -- Check for working CXX compiler: c:/mingw/bin/g++.exe -- works
>> -- Found Qt-Version 4.1.0
>> CMake Error: This project requires some variables to be set,
>> and cmake can not find them.
>> Please set the following variables:
>> QT_QT3SUPPORT_LIBRARY (ADVANCED)
>> QT_QTCORE_LIBRARY (ADVANCED)
>>
>>
>> Any idea what groes wrong ?
>>     
> I think the libnames cmake is looking for aren't correct for mingw. 
Your right, I detected that with filemon from www.sysinternals.com. For 
mingw (and cygwin) a specific binary release of cmake is required. The 
cmake msvc binary releases has the extension hardcoded. There seems no 
way to configure the prefix and extension at runtime. Not good :-(

See the following code fragment in source/kwsys/SystemTools.cxx

kwsys_stl::string SystemTools
::FindLibrary(const char* name,
              const kwsys_stl::vector<kwsys_stl::string>& userPaths)
<snip>

#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__MINGW32__)
    tryPath = *p;
    tryPath += "/";
    tryPath += name;
    tryPath += ".lib";
    if(SystemTools::FileExists(tryPath.c_str())
       && !SystemTools::FileIsDirectory(tryPath.c_str()))
      {
      return SystemTools::CollapseFullPath(tryPath.c_str());
      }
#else

Has anyone a mingw binary release for windows ?

> Take a
> look into kdelibs/cmake/modules/FindQt4 to see if the libnames are correct.Christian
>
>