defcenum with non-integer base-type

the situation:

some projects out in the wild use DEFCENUM with e.g. :DOUBLE base-type. this is not in adherence with the C standard (only integer types are valid enum types, and it's at least int sized). my refactoring of enums introduced an explicit check for this, and it broke some projects in ql. to alleviate that i've commented out this new check in master.

the question:

should we roll with this? does anyone see any problems or potentially surprising behavior? e.g. with the semantics of the enum increments and the double base type? or something else?