add_compile_options [was Re: Review Request 114885: Remove custom build types]

Alex Merry kde at randomguy3.me.uk
Wed Jan 8 10:30:34 UTC 2014


On 07/01/14 15:36, Stephen Kelly wrote:
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/114885/
> 
> 
> I didn't follow this discussion closely enough. I'll see if I can catch up with it later.
> 
> 
> kde-modules/KDECompilerSettings.cmake
> <https://git.reviewboard.kde.org/r/114885/diff/1/?file=233187#file233187line25>
> (Diff revision 1)
> 	
> 
> 	9 	
> 
> #                           set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${KDE_ENABLE_EXCEPTIONS}")
> 
> Setting CMAKE_CXX_FLAGS is not 'modern cmake'. Prefer to use add_compile_options instead.
> 
>  http://www.cmake.org/cmake/help/git-next/command/add_compile_options.html

Question: how do you get add_compile_options to only add options for a
particular language?  The generator expressions allow selection based on
which C++ or C compiler is in use, but I can't see a way of controlling
flags based on whether the current target is C++, C or other.

Alex


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