configure check for the pango version is outdated

[jcfp]

Currently, configure has this check for the pango version:

PKG_CHECK_MODULES(PANGO, pango >= 1.32)

...but the code actually requires a number of definitions added in 1.50. I only noticed because of a build failure on architectures (kfreebsd-*) with a somewhat outdated pango package, while things were fine on any archs that do have 1.50 available.

Example build failure with pango 1.46:
https://buildd.debian.org/status/fetch.php?pkg=xpad&arch=kfreebsd-amd64&ver=5.6.0-1&stamp=1646684635&raw=0

Pango upstream:
https://gitlab.gnome.org/GNOME/pango/-/blob/4851f23d6205e9e34ccacb48d02eae5e0f3b2f27/pango/pango-font.h#L80

[Arthur Borsboom (arthurborsboom)]

Ah, good find!

This was a last minute change with little added value.
I will (mostly) undo the change to "pango_font_description_to_css"

[Arthur Borsboom (arthurborsboom)]

Xpad 5.7.0 has been released, which depends again on Pango v1.32 (undo).

https://launchpad.net/xpad/trunk/5.7.0
https://launchpad.net/xpad/trunk/5.7.0/+download/xpad-5.7.0.tar.bz2