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

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Message #51 received at 10237 <at> debbugs.gnu.org (full text, mbox):

From: "Daniel Richard G." <skunk <at> iSKUNK.ORG>
To: "Paul Eggert" <eggert <at> cs.ucla.edu>
Cc: Stefano Lattarini <stefano.lattarini <at> gmail.com>,
	Eric Blake <eblake <at> redhat.com>, 10237 <at> debbugs.gnu.org
Subject: Re: bug#10237: AM_SILENT_RULES does not work with NonStop make
Date: Tue, 06 Dec 2011 22:20:11 -0500

On Tue, 2011 Dec  6 16:15-0800, Paul Eggert wrote:
> On 12/06/11 15:16, Daniel Richard G. wrote:
>
> > (Paul: Does $({}) work on NonStop?)
> 
> I don't know, sorry.
> 
> 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.
> 
> Part of this is my experience with implementers who
> code from the spec, so that their implementations'
> quirks are not necessarily those of the historical
> code.

Unless an implementation forgets to allow curly-braces altogether,
however, I don't see why this wouldn't work. I've certainly seen
projects that use ${...} as the general convention. It would have to be
a pretty naive make implementation to not support that.

As I see it, the only real way to play it safe here, per POSIX, is to
forgo the use of nested variables altogether.


--Daniel


-- 
Daniel Richard G. || skunk <at> iSKUNK.ORG
My ASCII-art .sig got a bad case of Times New Roman.

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