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<h4 class="subsection">3.17.9 DEC Alpha/VMS Options</h4>
<p>These &lsquo;<samp><span class="samp">-m</span></samp>&rsquo; options are defined for the DEC Alpha/VMS implementations:
<dl>
<dt><code>-mvms-return-codes</code><dd><a name="index-mvms_002dreturn_002dcodes-1208"></a>Return VMS condition codes from main. The default is to return POSIX
style condition (e.g. error) codes.
<br><dt><code>-mdebug-main=</code><var>prefix</var><dd><a name="index-mdebug_002dmain_003d_0040var_007bprefix_007d-1209"></a>Flag the first routine whose name starts with <var>prefix</var> as the main
routine for the debugger.
<br><dt><code>-mmalloc64</code><dd><a name="index-mmalloc64-1210"></a>Default to 64bit memory allocation routines.
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