VS: Suppress VS 16.9+ default /permissive flag
VS 16.9 changed its ConformanceMode
setting from a BoolProperty
to
an EnumProperty
, and set it to true
by default. This causes the
/permissive
flag to be passed to the compiler even if not requested by
the project. In this case, add an explicit ConformanceMode
default
setting to suppress the flag unless the project or user passes it.
Fixes: #21945 (closed)
Backport: release