[CMake] CMake 2.8.0 RC 1 ready for testing!

[Brad King]

Andreas Pakulat wrote:
> On 25.09.09 16:07:21, Bill Hoffman wrote:
>> I am happy to announce that CMake 2.8.0 has entered the beta stage! You
>> can find the source and binaries here: http://www.cmake.org/files/v2.8/.
>>
>> I am sure I am leaving something out, but here is the list of changes
>> that I came up with.  (If you notice something missing please let me
>> know and I will add it to the official release when 2.8.0 is finalized.)
>> Changes in CMake 2.8.0 RC 1
> 
> Here's another error (building kdevplatform):
> 
> [ 57%] Built target kdevplatformvcs
> vcs/dvcs/tests/CMakeFiles/dvcsTest.dir/build.make:47:
> vcs/dvcs/tests/CMakeFiles/dvcsTest.dir/progress.make: No such file or
> directory
> make[2]: *** No rule to make target
> `vcs/dvcs/tests/CMakeFiles/dvcsTest.dir/progress.make'.  Stop.
> make[1]: *** [vcs/dvcs/tests/CMakeFiles/dvcsTest.dir/all] Error 2

This is because you have two executable targets named 'dvcsTest'.
Even though they are in different directories, CMake has required
globally unique logical target names since 2.6:

  http://www.cmake.org/cmake/help/cmake2.6docs.html#policy:CMP0002

(Actually it always wanted them but didn't enforce it until 2.6).
Normally CMake 2.6 would have warned you about this problem, but
KDE requests OLD behavior:

  FindKDE4Internal.cmake:# CMP0002: in KDE4 we have multiple targets with the same name for the unit tests
  FindKDE4Internal.cmake:cmake_policy(SET CMP0002 OLD)

This line prevents the warning, which was nice at the time it was
written, but it also prevents KDE developers from seeing the hints
CMake normally provides to update their projects.

CMake 2.8.0-rc1 has a bug that prevents the OLD behavior for this
policy from working correctly.  I'll fix it, but you should also
fix the project to avoid duplicate target names...we may not allow
them forever.

-Brad