[cmake-developers] COMPILE_LANGUAGE generator expression

[Stephen Kelly]

Regarding 

 http://public.kitware.com/Bug/view.php?id=14857

I have implemented a COMPILE_LANGUAGE generator expression, to revisit the 
conclusion of this thread:

 http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/6844/focus=6875

I've pushed a branch to my clone as target-language-genex:

 https://gitorious.org/cmake/steveires-cmake/commits/target-language-genex

The design is to allow COMPILE_LANGUAGE in compilation properties (compile 
options, compile defintions, include directories), and in the generator 
expressions of file(GENERATE).

The problem remains that the IDE generator features may not be compatible 
with this design.

Is there any updated knowledge since 

 http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/6844/focus=6855

I saw commit 06e527b3 (Merge topic 'xcode-flags-per-language', 2015-02-10) 
go in recently, but I don't know if it relates to this.

Even if the issue can be solved for compile options and compile definitions, 
it seems that for the IDEs, include directories may pose greater problems 
because there is no way to keep one list for that, while also allowing the 
context to be compile language dependent?

Thanks,

Steve.