I was trying to compile RIOT with -Wpedantic (+ -Wall -Werror ...) and ran into several errors like the following:

/RIOT/boards/pba-d-01-kw2x/include/periph_conf.h:52:18: error: binary constants are a GCC extension
     .fll_frdiv = 0b010, /* Divide by 128 */
                  ^

It seems that usage of 0b* is not generally recommended. There are not that many places where such is used in RIOT, however, to get RIOT compiled with -Wpedantic in the (far) future we need to find a solution - or wait that compilers don't see this as a problem.

What's the general opinion on this?