[CMake] Header files excluded from build in Visual Studio

[Bill Hoffman]

Claus Höfele wrote:
> Thanks for the quick replies.
> 
> I'm using cmake 2.6.3 + Visual Studio 8 2005 SP1
> 
> Playing around further with the file properties in Visual Studio, it
> looks like VS only checks the syntax of a file if the Tool property is
> set to C/C++ Compiler Tool. However, this setting will cause the
> header file to be compiled, which is obviously not what you want.
> 
> So the setting for a header file should be:
> 1.) Excluded From Build: No
> 2.) Tool: Custom Build Tool
> 
> 2.) is already done, 1.) is not.
> 
> For my purposes, it was enough to change cmSourceFile::CheckExtension() like so:
> 
>   // Look for header files.
>   if ...
>   else
>     {
>     // This is a known header file extension.  The source cannot be compiled.
>     if(!this->GetProperty("HEADER_FILE_ONLY"))
>       {
>       this->SetProperty("HEADER_FILE_ONLY", "1");
>       }
>     }
> 
> This allows me to override the HEADER_FILE_ONLY setting to false in my
> CMakeLists.txt and produces the project files I want.
> 
> Would be great if a similar fix would make it into the next release.
> 

What is the default if you have VS create the project?  BTW, this all 
came from this bug fix:
http://public.kitware.com/Bug/view.php?id=7845

I am not sure you want to make that false in your file, as the makefile 
generator may then try and compile it.  CMake should handle a .h file 
without having to change anything.

-Bill