GNU bug report logs - #10237
AM_SILENT_RULES does not work with NonStop make

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From: Eric Blake <eblake <at> redhat.com>
To: "Daniel Richard G." <skunk <at> iSKUNK.ORG>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, Stefano Lattarini <stefano.lattarini <at> gmail.com>, 10237 <at> debbugs.gnu.org
Subject: bug#10237: AM_SILENT_RULES does not work with NonStop make
Date: Tue, 06 Dec 2011 20:33:22 -0700

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On 12/06/2011 08:20 PM, Daniel Richard G. wrote:
>> I wanted a solution that worked
>> on any POSIX platform -- POSIX 2008 says that
>> $(aaa${bbb}) is just as unspecified as
>> $(aaa$(bbb)) is, and I wanted to play it safe.
>>
> As I see it, the only real way to play it safe here, per POSIX, is to
> forgo the use of nested variables altogether.

Exactly.  Hence the proposal for a configure-time check, which expands
to the extension where the extension was tested to work, and which
expands to an innocuous variant that avoids nested variables where the
test fails.

-- 
Eric Blake   eblake <at> redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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