pkg/54398: "devel/gobject-introspection" doesn't build under macOS (High Sierra)

[tron%zhadum.org.uk@localhost]

>Number:         54398
>Category:       pkg
>Synopsis:       "devel/gobject-introspection" doesn't build under macOS (High Sierra)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 22 22:55:00 +0000 2019
>Originator:     tron%zhadum.org.uk@localhost
>Release:        Darwin 17.7.0 pkgsrc HEAD from 2019-07-22
>Organization:
>Environment:
System: Darwin excalibur.zhadum.org.uk 17.7.0 Darwin Kernel Version 17.7.0: Sun Jun 2 20:31:42 PDT 2019; root:xnu-4570.71.46~1/RELEASE_X86_64 x86_64

>Description:
The "devel/gobject-introspection" doesn't build under macOS (High Sierra):

Undefined symbols for architecture x86_64:
  "_g_desktop_app_info_get_type", referenced from:
      _GI_GET_TYPE_FUNCS_ in Gio-2.0.o
  "_g_desktop_app_info_lookup_get_type", referenced from:
      _GI_GET_TYPE_FUNCS_ in Gio-2.0.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
linking of temporary binary failed: Command '['clang', '-o', '/objdir/tron/devel/gobject-introspection/work.excalibur/gobject-introspection-1.60.1/output/tmp-introspectvv09amfs/Gio-2.0', '-I/opt/pkg/include/glib-2.0', '-I/opt/pkg/include/gio-unix-2.0', '-I/opt/pkg/lib/glib-2.0/include', '-I/usr/include', '-I/opt/pkg/include', '-I/opt/pkg/include/python3.7', '-O2', '-I/opt/pkg/include/glib-2.0', '-I/opt/pkg/include/gio-unix-2.0', '-I/opt/pkg/lib/glib-2.0/include', '-I/usr/include', '-I/opt/pkg/include', '-I/opt/pkg/include/python3.7', '/objdir/tron/devel/gobject-introspection/work.excalibur/gobject-introspection-1.60.1/output/tmp-introspectvv09amfs/Gio-2.0.o', '-L/opt/pkg/lib', '-lgmodule-2.0', '-lgio-2.0', '-lgobject-2.0', '-lintl', '-lglib-2.0', '-lgio-2.0', '-L/opt/pkg/lib', '-L/usr/lib']' returned non-zero exit status 1.
ninja: build stopped: subcommand failed.
*** Error code 1

This look like some broken code for shared library building, probably
Meson related.

>How-To-Repeat:
cd pkgsrc/devel/gobject-introspection
bmake

>Fix:
Not known