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67 lines
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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<a name="W"></a>Next: <a rel="next" accesskey="n" href="Z.html#Z">Z</a>,
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Previous: <a rel="previous" accesskey="p" href="v.html#v">v</a>,
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<h3 class="section">2.16 Control Warnings: <span class="option">-W</span>, <span class="option">--warn</span>, <span class="option">--no-warn</span>, <span class="option">--fatal-warnings</span></h3>
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<p><span class="command">as</span> should never give a warning or error message when
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assembling compiler output. But programs written by people often
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cause <span class="command">as</span> to give a warning that a particular assumption was
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made. All such warnings are directed to the standard error file.
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<p><a name="index-_002dW-101"></a><a name="index-_002d_002dno_002dwarn-102"></a><a name="index-suppressing-warnings-103"></a><a name="index-warnings_002c-suppressing-104"></a>If you use the <span class="option">-W</span> and <span class="option">--no-warn</span> options, no warnings are issued.
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This only affects the warning messages: it does not change any particular of
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how <span class="command">as</span> assembles your file. Errors, which stop the assembly,
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are still reported.
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<p><a name="index-_002d_002dfatal_002dwarnings-105"></a><a name="index-errors_002c-caused-by-warnings-106"></a><a name="index-warnings_002c-causing-error-107"></a>If you use the <span class="option">--fatal-warnings</span> option, <span class="command">as</span> considers
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files that generate warnings to be in error.
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<p><a name="index-_002d_002dwarn-108"></a><a name="index-warnings_002c-switching-on-109"></a>You can switch these options off again by specifying <span class="option">--warn</span>, which
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causes warnings to be output as usual.
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</body></html>
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