[tex-live] Critical bugfix needed for XeTeX [was: Re: Fwd: Duplicate Thai patterns reported by XeTeX in TL 2015 pretest]

Peter Breitenlohner peb at mppmu.mpg.de
Fri Apr 17 11:47:34 CEST 2015

On Fri, 17 Apr 2015, Jonathan Kew wrote:

> One note: as far as I'm aware, the line
> is unnecessarily complex (which hurts readability); it should be sufficient 
> to write
> because the preprocessor treats undefined symbols as 0 when evaluating #if 
> conditions.
> (Or are there ancient, non-standards-compliant systems where this fails?)

Hi Jonathan,

yes, I know.  I just wanted to be on the safe side.


I have just compiled for Darwin where HAVE_DECL_ISASCII is now defined as 1!


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