New FAVORITE_COMPILER uses, how to select version?

[ikbendeman]

From /usr/ports/UPDATING:

A new USES has been added: compiler.mk, this uses allows porters to
select a compiler for a given port based on the features the port needs
By default this will always try to find clang > 3.3.
If the user prefers using gcc then the following macro should be added
to user's make.conf: FAVORITE_COMPILER=gcc

So how do we select say gcc47 as our favorite compiler?

 

[kpa]

Try setting these:

FAVORITE_COMPILER=gcc
GCC_DEFAULT_VERSION=4.7

 

[ikbendeman]

It still appears to be using clang since I have lang/clang33 installed. Do I still need to set CC CXX and CPP? Confused :\