[vtkusers] Compiling VTK with MinGW, fixes to CMake rules

[Mathieu Malaterre]

Kalle Pahajoki wrote:
> Mathieu Malaterre wrote:
> 
>> Kalle,
>>
>>     VTK is being compiled every night with the following ctest script:
>>
>> http://www.vtk.org/Testing/Sites/ARRAKIS.kitware/Win32-mingw/20050914-0300-Nightly/Notes.html 
>>
>>
>>     It does not involve any kind of modification neither in VTK source 
>> nor in cmake source. Could you please tell us what commands you use to 
>> create those problems ? 
> 
> 
> 
> I got the problems using the "Unix makefiles" build type in the 
> CMakeSetup (CMake 2.0 patch 6).
> 
> Could you clarify for a CMake neophyte, how does one use above mentioned 
> script to compile VTK?
> 
> So far, my compilation process has been:
> - cmakesetup
> - configure & generate
> - make
> 
> Where does the mentioned script enter the picture?

Kalle,

	Ok I think I browse through your email too quickly. First question 
should be:

Can you build VTK out of the box using cmake or not ?

	It looks like -IMHO- you are trying to do some windoze tricks to your 
build whereas MINGW is supposed to provide a POSIX system. Therefore if 
you use gcc on mingw and try to link :

gcc -shared -o bla.so -lfoo

	Then the linker will search for a library name: 'libfoo.so' or 
'libfoo.a', note that lib is a compulsory prefix in this case. As a side 
note you cannot mix VS C++ libraries with g++ library since the c++ name 
mangling is not compatible(*).

	As for the -lgcc, I don't understand why you had to remove it. Worse 
case it should generate some warning but not errors.

	Also for ctest scripting I suggest you read:
http://www.cmake.org/Wiki/CMake_Scripting_Of_CTest
and
http://www.cmake.org/Wiki/CMake_Testing_With_CTest

HTH
Mathieu
(*)easily :)