Add poppler-glib to poppler rule

[pat-s]

To support packages like Rpoppler

[gaborcsardi]

We could also have another rule for this, to avoid unneeded stystem packages.

[pat-s]

Sure, makes sense. Is this a fixed decision?

[glin]

Yeah I think that would be ideal just because of how many automated processes are installing whatever comes back from the DB.

So currently only 2 CRAN packages seem to be using poppler, pdftools with SystemRequirements:

Poppler C++ API: libpoppler-cpp-dev (deb) or poppler-cpp-devel (rpm), and poppler-data (rpm/deb) package.

Rpoppler with SystemRequirements:

Poppler Glib interface headers and libraries (<http://poppler.freedesktop.org/>) [Debian/Ubuntu: libpoppler-glib-dev, Fedora: poppler-glib-devel]

We could copy-paste the existing poppler rule as a new poppler-glib rule, that just matches on "poppler glib" with the glib packages instead.

Then for the current one, changing it to match on "Poppler C\\+\\+" would be an option as I don't see any other CRAN packages that just have "poppler" in their system reqs, but I'm not sure if that would affect any other packages outside CRAN. I'd be fine with leaving the current rule as-is for now.

[glin]

Looks good, thanks!