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| <title>The GNU Fortran Compiler: Invoking GNU Fortran</title> |
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| Next: <a href="Runtime.html#Runtime" accesskey="n" rel="next">Runtime</a>, Previous: <a href="Introduction.html#Introduction" accesskey="p" rel="prev">Introduction</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="GNU-Fortran-Command-Options"></a> |
| <h2 class="chapter">2 GNU Fortran Command Options</h2> |
| <a name="index-GNU-Fortran-command-options"></a> |
| <a name="index-command-options"></a> |
| <a name="index-options_002c-gfortran-command"></a> |
| |
| |
| <p>The <code>gfortran</code> command supports all the options supported by the |
| <code>gcc</code> command. Only options specific to GNU Fortran are documented |
| here. |
| </p> |
| <p>See <a href="http://gcc.gnu.org/onlinedocs/gcc/Invoking-GCC.html#Invoking-GCC">GCC Command Options</a> in <cite>Using the GNU Compiler |
| Collection (GCC)</cite>, for information |
| on the non-Fortran-specific aspects of the <code>gcc</code> command (and, |
| therefore, the <code>gfortran</code> command). |
| </p> |
| <a name="index-options_002c-negative-forms"></a> |
| <p>All GCC and GNU Fortran options |
| are accepted both by <code>gfortran</code> and by <code>gcc</code> |
| (as well as any other drivers built at the same time, |
| such as <code>g++</code>), |
| since adding GNU Fortran to the GCC distribution |
| enables acceptance of GNU Fortran options |
| by all of the relevant drivers. |
| </p> |
| <p>In some cases, options have positive and negative forms; |
| the negative form of <samp>-ffoo</samp> would be <samp>-fno-foo</samp>. |
| This manual documents only one of these two forms, whichever |
| one is not the default. |
| </p> |
| <table class="menu" border="0" cellspacing="0"> |
| <tr><td align="left" valign="top">• <a href="Option-Summary.html#Option-Summary" accesskey="1">Option Summary</a>:</td><td> </td><td align="left" valign="top">Brief list of all <code>gfortran</code> options, |
| without explanations. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Fortran-Dialect-Options.html#Fortran-Dialect-Options" accesskey="2">Fortran Dialect Options</a>:</td><td> </td><td align="left" valign="top">Controlling the variant of Fortran language |
| compiled. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Preprocessing-Options.html#Preprocessing-Options" accesskey="3">Preprocessing Options</a>:</td><td> </td><td align="left" valign="top">Enable and customize preprocessing. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Error-and-Warning-Options.html#Error-and-Warning-Options" accesskey="4">Error and Warning Options</a>:</td><td> </td><td align="left" valign="top">How picky should the compiler be? |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Debugging-Options.html#Debugging-Options" accesskey="5">Debugging Options</a>:</td><td> </td><td align="left" valign="top">Symbol tables, measurements, and debugging dumps. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Directory-Options.html#Directory-Options" accesskey="6">Directory Options</a>:</td><td> </td><td align="left" valign="top">Where to find module files |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Link-Options.html#Link-Options" accesskey="7">Link Options </a>:</td><td> </td><td align="left" valign="top">Influencing the linking step |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Runtime-Options.html#Runtime-Options" accesskey="8">Runtime Options</a>:</td><td> </td><td align="left" valign="top">Influencing runtime behavior |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Code-Gen-Options.html#Code-Gen-Options" accesskey="9">Code Gen Options</a>:</td><td> </td><td align="left" valign="top">Specifying conventions for function calls, data layout |
| and register usage. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Environment-Variables.html#Environment-Variables">Environment Variables</a>:</td><td> </td><td align="left" valign="top">Environment variables that affect <code>gfortran</code>. |
| </td></tr> |
| </table> |
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