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Re: omitting -W, -Wall etc in configure

From: José Luis García Pallero
Subject: Re: omitting -W, -Wall etc in configure
Date: Mon, 9 Mar 2009 16:40:53 +0100

I don't know if it possible to add, for example, an option like --no-warning-flags to the configure script for disable the -Wxx options.

2009/3/9 Jaroslav Hajek <address@hidden>
hi all,

currently, Octave's configure script automatically adds -Wall, -W and
-Wextra to the C++ flags. This works fine with gcc; however, with
Intel C++ it's not so nice:
-W and -Wextra are not supported, but ignored, so the configure
scripts detects them as "accepted" and adds them, which makes icpc
output a warning about ignored options after each source.
-Wall is even worse as it makes the Intel compiler dump out an
incredible number of warnings and remarks like "floating-point
equality comparisons are unreliable" or "operands evaluated in
unspecified order", which makes it impossible to inspect the progress
of the build process visually, because the screen is flooded.
I do not see, however, any built-in way to disable these flags in the
configure scrip (this is a purely production build, so I don't need
them at all).
Have I overlooked something? Perhaps we could add an option for that?


RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
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José Luis García Pallero
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