"gimp" build fails in configure phase.

["John D. Baker" <jdbaker%consolidated.net@localhost>]

With up-to-date pkgsrc-HEAD on netbsd-11/amd64, my build attempts for
"graphics/gimp" have been failing during configure with:

[...]
Checking if "pango is built with libthai support" with dependency pango runs: NO (1)
meson.build:608: WARNING: Pango was not built with libthai support. Line breaking on Text tool may be incorrect on Thai language.
Run-time dependency librsvg-2.0 found: YES 2.62.3
WARNING: Pkg-config error with 'appstream': Could not generate cflags for appstream:
Package wayland-client was not found in the pkg-config search path.
Perhaps you should add the directory containing `wayland-client.pc'
to the PKG_CONFIG_PATH environment variable
Package 'wayland-client', required by 'appstream', not found

WARNING: Found CMake '/tmp/pkgsrc/graphics/gimp/work/.tools/bin/false' but couldn't run it
Found CMake: NO
Run-time dependency appstream found: NO 

meson.build:705:12: ERROR: Dependency lookup for appstream with method 'pkg-config' failed: Could not generate cflags for appstream:
Package wayland-client was not found in the pkg-config search path.
Perhaps you should add the directory containing `wayland-client.pc'
to the PKG_CONFIG_PATH environment variable
Package 'wayland-client', required by 'appstream', not found


A full log can be found at /tmp/pkgsrc/graphics/gimp/work/gimp-3.2.6/output/meson-logs/meson-log.txt
*** Error code 1

Stop.
make[1]: stopped making "all" in /x/pkgsrc/graphics/gimp
*** Error code 1

Stop.
make: stopped making "all" in /x/pkgsrc/graphics/gimp


This was even before the recent update of "graphics/gimp" just before the
freeze.  The failure is the same, regardless.

"appstream" is installed, but apparently, since I make a point to exclude
"wayland" support whenever possible (PKG_DEFAULT_OPTIONS+=-wayland), "gimp"
is having issues with it.  Nevertheless, my "appstream" pkg_info output
indicates that "wayland" is installed, so I don't know why my build is
failing and the bulk builds indicate "gimp" succeeds.

There doesn't appear to be an independent package called "wayland-client".

Maybe "gimp" needs to grow a "wayland" option so it can be turned off?

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