Jim Meyering wrote: > [reviving an old thread...] This was a reply to <http://lists.gnu.org/archive/html/bug-coreutils/2008-10/msg00216.html>, for those who - like me - lost the context after 4 months.
> I confirmed that running with SIGCHLD ignored, and regardless > of which wait function it uses (wait, waitpid, or waitid), the > parent still fails to determine the child's exit status. I.e., > each of the wait functions does wait, but then returns -1/ECHILD > rather than the child's PID. That's as expected, according to POSIX (<http://www.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html#tag_15_04_03> section SIG_IGN). > Which makes me think gnulib's wait-process.c will have to be changed > to deal with this. wait-process.c is meant to react depending on the exit code of the child process. So the change I could apply is to add a comment in the specification: "This function assumes that the signal handler for SIGCHLD is not set to SIG_IGN." Do you have something else in mind? Bruno
