[CMake] Spaces in conditional output of generator expressions

[Marc CHEVRIER]

Did you try with $<SEMICOLON> rather than the ; character?

Le dim. 3 juin 2018 à 06:24, Craig Scott <craig.scott at crascit.com> a écrit :

> On Sun, Jun 3, 2018 at 12:34 PM, Neil Carlson <neil.n.carlson at gmail.com>
> wrote:
>
>> On Sat, Jun 2, 2018 at 4:53 PM Stephen McDowell <sjm324 at cornell.edu>
>> wrote:
>>
>>> It should be a CMake list, which is delineated by semicolons.
>>>
>>> add_compile_options($<$<COMPILE_LANGUAGE:C>-Wall;-Wextra>)
>>>
>>> I am writing this from a phone so untested, but that has worked for me
>>> in the past.
>>>
>>
>> Right about the list, and is one of the things I tried, but didn't work.
>> This one
>> seems to break the generator expression.
>>
>
> I think you are missing a colon after the first ">". I just tried a
> command like the following and it produces the right compiler command line
> options for me (on macOS using CMake 3.11.0 with either Ninja or Xcode):
>
> target_compile_options(someTarget PRIVATE
>     $<$<COMPILE_LANGUAGE:CXX>:-Wall;-Wextra>
> )
>
> I also works for me even without the semi-colon (i.e. using a space
> instead), which was kinda surprising given that I didn't quote the whole
> generator expression. Not sure about other platforms or generators.
>
>
>
> --
> Craig Scott
> Melbourne, Australia
> https://crascit.com
> --
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