New review comment by ndowens on void-packages repository

https://github.com/void-linux/void-packages/pull/26544#discussion_r528038767

Comment:
If it non-cross-build it builds fine; Currently I am trying to fix cross, then test cmake and cmake-gui against it.
If it is being built using cross-built it for some reason can't find C compiler and log says C compiler is set to c++ compiler, which isn't correct. If I get C compiler fine, it gives c++ doesn't support c++11