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bug#13472: Execution mode can hang pc when parameter refers to big file

From: Bob Friesenhahn
Subject: bug#13472: Execution mode can hang pc when parameter refers to big file
Date: Tue, 29 Jan 2013 09:30:07 -0600 (CST)
User-agent: Alpine 2.01 (GSO 1266 2009-07-14)

On Tue, 29 Jan 2013, Peter Rosin wrote:

Hi Bob,

On 2013-01-17 16:29, Bob Friesenhahn wrote:
Everything would be easier if libtool would arrange to build a small helper
executable in the build tree which it can used instead of system tools.
Libtool already builds a native executable in some cases.  This would
diminish portability concerns and improve performance.  The main issue
with this is that for cross-builds, a system native compiler needs to be
used to build the helper executable.

Forgive me for my ignorance, but when does libtool build something with
the $build compiler in the cross case? The only thing I can find that
looks like an alternative compiler is $LTCC, but that's just another
name for the normal $host C compiler. What am I missing?

As I recall, libtool builds an execution test wrapper for a Windows native build. It would (should) not do that for a cross-build. However, the C test wrapper was written using portable interfaces so it could compile under POSIX (even if we don't currently do that).

Autoconf/libtool in general does not seem to support the notion of supporting both a cross-compiler for the target and a native compiler for producing programs supporting the build, or remote/emulated testing of the "target". If this hurdle was solved in a clean way, then many implementation opportunities would appear.

Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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