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Re: tests: work around Tru64 sh -e issues for instspc*.test.
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From: |
Eric Blake |
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Subject: |
Re: tests: work around Tru64 sh -e issues for instspc*.test. |
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Date: |
Thu, 20 Jan 2011 14:01:15 -0700 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.7 |
On 01/20/2011 01:50 PM, Ralf Wildenhues wrote:
> Ahh, but it would have needed to be in that very patch, unfortunately.
> As it is, my last patch fixed Tru64, but regressed NetBSD by roughly the
> same number of failures, because `unset NOT_SET' fails there.
But bash 2.05a would dump core on 'unset NOT_SET', as documented in the
autoconf manual. So the portable workaround that should keep NetBSD's
sh -e happy is:
foo=; unset foo
if you aren't sure in advance whether foo is set.
$ /bin/sh -ce 'unset foo; echo hi'
$ /bin/sh -ce 'foo=; unset foo; echo hi'
hi
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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