[poppler] ABI stability

[Jason Crain]

On 2018-05-24, Heinz Wiesinger <HMWiesinger at liwjatan.at> wrote:
> Of course, there's also the possibility that I'm missing something, in which 
> case, mea culpa. However, I would still appreciate some explanation in that 
> case, if only for my personal curiosity :)

libpoppler is not so much an API as it is the guts ripped out of the
XPDF viewer and packaged as a library, and as such exposes way too many
implementation details to make stability practical. The various
frontends (glib, Qt, cpp) are more stable.