[Bug 203793] Fix devel/cmake-modules so it prefers "c++" over "CC" for compiling C++ programs

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203793

groot at kde.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |groot at kde.org

--- Comment #8 from groot at kde.org ---
The very old CMake commit referenced here does two things:
 - defaults the C++ compiler to "CC" if nothing else sets it up
 - sets up linux, and a bunch of others, to use g++ or c++

A simple and straightforward way to avoid the use of CC as C++ compiler, is to
add FreeBSD to the family of platforms that take the second path. This is 3
lines of CMake code in Modules/Platforms.

I've got this lined up for the (future) CMake 3.9 update, and will try to
upstream it as well.

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