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Re: [Libvir] make syntax-check fails with bzr checkouts



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According to Jim Meyering on 4/30/2008 4:19 AM:
|> -      $(find ${*-*} -name Entries -print) /dev/null;
|> +      $(find ${*:-*} -name Entries -print) /dev/null;
|
| Thanks for reporting that.
| Note though that POSIX appears to require the behavior that bash exhibits,
| so calling this a bashism doesn't seem right.  However, in the spec,
| just beneath the part that talks about ${parameter-word} there are escape
| clauses for e.g., ${#parameter} and ${parameter%word} etc.:
|
|   If parameter is '*' or '@', the result of the expansion is unspecified.
|
| but there is no such exemption for the ${parameter-word} syntax.

I think POSIX is ambiguous here.  For the ${a:-b} (and ${a-b}) form, it
only states that if the parameter is null/unset, use the substitute; but
it can be argued that * and @ are _always_ set.  Maybe it's worth asking
the Austin group.  But Jim's workaround looked better anyway.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9 byu net
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