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Re: ksh bug on Tru64 UNIX causes current libtool failure

From: Norman Gray
Subject: Re: ksh bug on Tru64 UNIX causes current libtool failure
Date: Thu, 2 Jun 2005 11:36:53 +0200


On 2005 Jun 2 , at 10.37, Ralf Wildenhues wrote:

Alternatively, the better option might be to tweak *DETECT_BETTER_SHELL
to prefer ksh over bin/sh..

I don't really want to intervene in this debate, but: <wince>. ksh has at least the unfortunate property that all file descriptors other than 0, 1, 2 are closed before an exec, and so aren't inherited by process children. Ksh seems unique in this, though it isn't listed as a problem in the autoconf section on shell portability issues. It's not a major problem -- and may not be a problem at all for libtool -- but it does make some otherwise attractive idioms impossible.

By the way, since tru64 seems a rather "interesting" target for libtool:

Oooh yes; oh yes indeedy. I've come to the conclusion that if your application builds on Tru64 and OS X, then it'll build just about anywhere.

All the best,


Norman Gray  :  Physics & Astronomy, Glasgow University, UK  :

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