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- <p>
- Next: <a href="Z.html#Z" accesskey="n" rel="next">Z</a>, Previous: <a href="v.html#v" accesskey="p" rel="prev">v</a>, Up: <a href="Invoking.html#Invoking" accesskey="u" rel="up">Invoking</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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- <a name="Control-Warnings_003a-_002dW_002c-_002d_002dwarn_002c-_002d_002dno_002dwarn_002c-_002d_002dfatal_002dwarnings"></a>
- <h3 class="section">2.17 Control Warnings: <samp>-W</samp>, <samp>--warn</samp>, <samp>--no-warn</samp>, <samp>--fatal-warnings</samp></h3>
-
- <p><code>as</code> should never give a warning or error message when
- assembling compiler output. But programs written by people often
- cause <code>as</code> to give a warning that a particular assumption was
- made. All such warnings are directed to the standard error file.
- </p>
- <a name="index-_002dW"></a>
- <a name="index-_002d_002dno_002dwarn"></a>
- <a name="index-suppressing-warnings"></a>
- <a name="index-warnings_002c-suppressing"></a>
- <p>If you use the <samp>-W</samp> and <samp>--no-warn</samp> options, no warnings are issued.
- This only affects the warning messages: it does not change any particular of
- how <code>as</code> assembles your file. Errors, which stop the assembly,
- are still reported.
- </p>
- <a name="index-_002d_002dfatal_002dwarnings"></a>
- <a name="index-errors_002c-caused-by-warnings"></a>
- <a name="index-warnings_002c-causing-error"></a>
- <p>If you use the <samp>--fatal-warnings</samp> option, <code>as</code> considers
- files that generate warnings to be in error.
- </p>
- <a name="index-_002d_002dwarn"></a>
- <a name="index-warnings_002c-switching-on"></a>
- <p>You can switch these options off again by specifying <samp>--warn</samp>, which
- causes warnings to be output as usual.
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