When testing something that is expected to fail or crash, it's useful
to disable core dump reporting.
This is a slightly simplified version of GNOME/glib!3510: because
libglnx isn't portable to non-Linux, we can assume that <sys/prctl.h>,
prctl() and <sys/resource.h> are always available, so we don't need
to check for them in the build system.
Signed-off-by: Simon McVittie <smcv@collabora.com>
These were only added in 2.38, and some projects with particularly
ancient dependencies (like the Steam Runtime, based on a 2012 version
of Ubuntu) still avoid depending on that version.
Signed-off-by: Simon McVittie <smcv@collabora.com>
This includes a test (who tests the tests themselves?). Run
as `${build}/tests/testing --tap` with semi-modern GLib, or
`${build}/tests/testing --verbose` with GLib < 2.38, to check that the
output is as reasonable as possible given the limitations of the GLib
version in use.
Signed-off-by: Simon McVittie <smcv@collabora.com>
