Am 03.10.2010 um 15:52 schrieb Will Robertson:

> (Sent quickly. Please excuse brevity.)
> 
> On 03/10/2010, at 11:41 PM, Philipp Stephani <[log in to unmask]> wrote:
> 
>> Am 03.10.2010 um 14:02 schrieb David Perry:
>> 
>>> If I omit the option, or use 'xetex' in place of 'hypertex' or use the driverfallback option, I get:
>>> 
>>> ! Undefined control sequence.
>>> \str_if_eq_p:nn #1#2->\tex_ifnum:D \pdf_strcmp:D
>>>                                                {\etex_unexpanded:D {#1}}{\...
>>> l.479 ...p:w  \cs_set_nopar:cpn  \cs_set_nopar:Npn
>>> 
>>> I fixed the missing commas but that made no difference.
>> 
>> Looks like an expl3 problem: \pdf_strcmp:D is pdfTeX's \pdfstrcmp, which might be nonexistent or available under a different name in XeTeX. This *might* get fixed by updating expl3; otherwise write to the LaTeX list ([log in to unmask], I've put it on CC).
> 
> I think I fixed this coincidentally earlier today. The update will roll out in a timely fashion.  

OK. (CC'ing to the original list)