Backport !2360 “meson: specify when commands need to succeed in run_command” to glib-2-70
meson in git master now warns about a missing check:
kwarg, and may
eventually change the default from false to true.
Take the opportunity to require objcopy --help
to succeed -- it is
unlikely to fail, but if it does something insane happened.
Trivial backport of !2360 (merged) to glib-2-70
.