Log message:
fcitx: Various build fixes.

- Need to include <strings.h> to use index(3).
- Honour the OS/user's PKGMANDIR choice.

Log message:
gtk3: bump PKGREVISION for wayland option default change

Recursive bump to hopefully fix bulk build fallout due to the
unversioned change.

Log message:
*: switch to glib2-introspection

The gobject-introspection package installed _some_ of the introspection
files needed for glib2, but not all - some of them are built from the glib2
sources. glib2-introspection now contains all glib2-related introspection
files.

Add a tool dependency on the new package where needed.

Remove gobject-introspection from buildlink3.mk files - this is usually
a tool and should not be forwarded via buildlink3.

Some cleanups/fixes for -current while here.

Log message:
*: recursive bump for removal of cairo's xcb option

Log message:
*: recursive bump for icu 78.1

Log message:
fcitx: Fix build-time segmentation fault on NetBSD 11 by fixing ctype abuse

While here review the rest of the code for ctype abuse which might cause
run-time crashes in the same platform.

reviewed by riastradh.

Log message:
*: recursive bump for pcre2

Running an old binary against the new pcre doesn't work:
/usr/pkg/lib/libpcre2-8.so.0: version PCRE2_10.47 required by \ 
/usr/pkg/lib/libglib-2.0.so.0 not defined

Log message:
*: recursive bump for tiff growing lerc dependency