gtestutils: Mention not ignoring SIGCHLD in g_test_trap_subprocess() docs
Prompted by #3071 (closed), this clarifies that g_test_trap_subprocess()
uses
g_child_watch_source_new()
internally, so it will not work if any of
the preconditions for using that API are not met. In particular, if
SIGCHLD
is ignored, things will break.
This documentation is not meant to be an API guarantee which constrains
the implementation of g_test_trap_subprocess()
in future, just a tip
to people currently using the API.
Signed-off-by: Philip Withnall philip@tecnocode.co.uk
Helps: #3071 (closed)