[Patch] Fix ONE_DIRECTION undef warnings.

[Carlos O'Donell]

On 04/28/2014 01:41 PM, Roland McGrath wrote:
> OK

Would it have been better to clarify the interface and have all
the converters define ONE_DIRECTION as either 0 or 1, and that way
we have *explicit* definition of intent from all the converters
including iconv/skeleton.c? With no `ifndef' in skeleton.c which
has most of the same problems as we had before?

Cheers,
Carlos.