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<h3 class="section">Control Warnings: <code>-W</code>, <code>--warn</code>, <code>--no-warn</code>, <code>--fatal-warnings</code></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>If you use the <code>-W</code> and <code>--no-warn</code> 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>If you use the <code>--fatal-warnings</code> option, <code>as</code> considers

files that generate warnings to be in error.



   <p>You can switch these options off again by specifying <code>--warn</code>, which

causes warnings to be output as usual.



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