[CMake] VS2010 problem with upper case CPP extension

[Michael Hertling]

On 04/25/2010 12:10 PM, Michael Wild wrote:
> 
> On 25. Apr, 2010, at 11:37 , Jarl Lindrud wrote:
> 
>>
>> Hi,
>>
>> I've just run cmake 2.8.1, with the "Visual Studio 10" generator, on a cmake project that I've previously been running the VS2008 generator on.
>>
>> There appears to be a problem with C++ source files that end with upper case CPP. They end up in the Visual Studio C++ project, but when I look at the properties of the file, I see "Does not participate in build", and indeed, when building, the compiler ignores the file completely.
>>
>> The lower case .cpp files are fine.
>>
>> This issue is easy to reproduce, just use this CMakeLists.txt file:
>>
>> PROJECT(Bug)
>> ADD_EXECUTABLE(Bug File1.cpp File2.CPP)
>>
>> , and create two empty files File1.cpp and File2.CPP (note the case...)

FYI: Doesn't work on *nix, too.

> Did you try to output the values of the following variables?
> 
> CMAKE_CXX_SOURCE_FILE_EXTENSIONS
> CMAKE_CXX_IGNORE_EXTENSIONS

Won't work: See bugtracker issues 8851, 2360 and additionally

<http://www.cmake.org/pipermail/cmake/2005-September/007220.html>

Advice:

SET_SOURCE_FILES_PROPERTIES(File2.CPP PROPERTIES LANGUAGE CXX)

or go with lower case... ;)

Regards,

Michael