10.11 64bit - gcc14 not working

[Chris Jones]

> nothing to upgrade/install, nothing broken... where is the catch? User 
> error or a bug? where?

Something in your dependency tree is requiring i386, which is what is 
triggering

Error: Cannot install libgcc14 for the archs 'i386 x86_64' because
Error: its dependency libmpc cannot build for the required archs.

you need to figure our from your area what is causing this.

If the requirement is valid, and libmpc cannot be made to work with 
i386, then you cannot do what you are trying to do.