The standards-conformant behaviour is that the contents of saveptr
are ignored when the first argument is non-NULL, but the man page notes
that some older implementations required saveptr to be NULL in that
situation, and the gcc 4.8 provided by the Steam Runtime warns about this.
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>
