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76 lines
3.7 KiB
HTML
76 lines
3.7 KiB
HTML
4 years ago
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<title>VMS Options - Using the GNU Compiler Collection (GCC)</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using the GNU Compiler Collection (GCC)">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Submodel-Options.html#Submodel-Options" title="Submodel Options">
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<link rel="prev" href="Visium-Options.html#Visium-Options" title="Visium Options">
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<link rel="next" href="VxWorks-Options.html#VxWorks-Options" title="VxWorks Options">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being ``Funding Free Software'', the Front-Cover
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(see below). A copy of the license is included in the section entitled
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``GNU Free Documentation License''.
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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funds for GNU development.-->
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="VMS-Options"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="VxWorks-Options.html#VxWorks-Options">VxWorks Options</a>,
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Previous: <a rel="previous" accesskey="p" href="Visium-Options.html#Visium-Options">Visium Options</a>,
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Up: <a rel="up" accesskey="u" href="Submodel-Options.html#Submodel-Options">Submodel Options</a>
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<hr>
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</div>
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<h4 class="subsection">3.17.51 VMS Options</h4>
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<p>These ‘<samp><span class="samp">-m</span></samp>’ options are defined for the VMS implementations:
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<dl>
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<dt><code>-mvms-return-codes</code><dd><a name="index-mvms_002dreturn_002dcodes-2644"></a>Return VMS condition codes from <code>main</code>. The default is to return POSIX-style
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condition (e.g. error) codes.
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<br><dt><code>-mdebug-main=</code><var>prefix</var><dd><a name="index-mdebug_002dmain_003d_0040var_007bprefix_007d-2645"></a>Flag the first routine whose name starts with <var>prefix</var> as the main
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routine for the debugger.
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<br><dt><code>-mmalloc64</code><dd><a name="index-mmalloc64-2646"></a>Default to 64-bit memory allocation routines.
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<br><dt><code>-mpointer-size=</code><var>size</var><dd><a name="index-mpointer_002dsize_003d_0040var_007bsize_007d-2647"></a>Set the default size of pointers. Possible options for <var>size</var> are
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‘<samp><span class="samp">32</span></samp>’ or ‘<samp><span class="samp">short</span></samp>’ for 32 bit pointers, ‘<samp><span class="samp">64</span></samp>’ or ‘<samp><span class="samp">long</span></samp>’
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for 64 bit pointers, and ‘<samp><span class="samp">no</span></samp>’ for supporting only 32 bit pointers.
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The later option disables <code>pragma pointer_size</code>.
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</dl>
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</body></html>
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