[CMake] How to detect MSVC 2015 update 3 (= presence of /fpermissive-)

[Konstantin Tokarev]

15.05.2017, 15:57, "René J.V. Bertin" <rjvbertin at gmail.com>:
> Hello,
>
> A question that will hopefully have a quick/easy answer:
>
> I'd like to detect when the MSVC /fpermissive- (yes, that's a dash at the end) can be used instead of /Za . I know that a later update bumped the version to 14.0.25422.01 and thus undoubtedly _MSC_FULL_VER== 1402542201 in C code so I could assume everyone keeps installs their updates and use that value.

Have you tried CHECK_CXX_COMPILER_FLAG?

>
> But what does this translate to in CMake code (MSVC_VERSION)? Probably not just 1903 I presume?
>
> Thanks,
> René
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Regards,
Konstantin