On Sun, Nov 12, 2017 at 9:40 AM, Bruno Haible <br...@clisp.org> wrote: > Hi Jim, > >> On hppa, the test that runs `gunzip --help > /dev/full` fails >> unexpectedly. It should run only on a system with writable "char" >> device /dev/full, and it should fail like this: >> >> $ gunzip --help > /dev/full >> echo: write error: No space left on device >> [Exit 1] >> >> But on your system, it exits with status 2. > > Yes: > > $ ./gunzip --help > /dev/full > echo: No space left on device > $ echo $? > 2
Ohh... So it's the HP-UX shell's "echo" that is detecting the write failure but setting errno to 2 rather than the 1 that gzip users would expect from gunzip. I'm considering testing only zero-vs-nonzero exit status in the help-version tests of those wrappers on systems for which echo fails that way. Otherwise, with all of gzip's wrappers depending on other programs that do not fail with the gzip-package-expected status, we'd see too many reports of these unrelated failures.
