Re: [AUCTeX-devel] Asking help for preview-latex

On 03/07/2019 08:36, David Kastrup wrote:
> Chris Liddell <[email protected]> writes:
> 
>> So, in essence, the idea is that you'll remove the stuff using
>> GS_PDF_ProcSet entirely. Add the option -dDELAYBIND to your gs command
>> line, include a suitable redefinition of initgraphics, then call
>> .bindnow, and continue as before.
>>
>> The redefinition of initgraphics would look something like:
>>
>> /initgraphics {
>>   //initgraphics
>>   /RG where {
>>     pop <R value> <B value> <G value> 3 copy rg RG
>>   } if
>> } bind def
> 
> I'll probably pitch in from here (if nobody else does) and write code
> that checks for the availability of any of these features and uses them.
> 
> What will be the result of trying to use the broken DELAYBIND?  Can I
> check/use it in a manner where the worst that will happen is, well,
> nothing?

Sorry, unfortunately not. Since DELAYBIND is a command line parameter,
by the time any Postscript could detect the problem, it's already too
late to recover.

Using DELAYBIND without the fixes will result in almost any non-trivial
file erroring out.

Chris