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<h4 class="subsection">6.60.9 Weak Pragmas</h4>
<p>For compatibility with SVR4, GCC supports a set of <code>#pragma</code>
directives for declaring symbols to be weak, and defining weak
aliases.
<dl>
<dt><code>#pragma weak </code><var>symbol</var><dd><a name="index-pragma_002c-weak-4177"></a>This pragma declares <var>symbol</var> to be weak, as if the declaration
had the attribute of the same name. The pragma may appear before
or after the declaration of <var>symbol</var>. It is not an error for
<var>symbol</var> to never be defined at all.
<br><dt><code>#pragma weak </code><var>symbol1</var><code> = </code><var>symbol2</var><dd>This pragma declares <var>symbol1</var> to be a weak alias of <var>symbol2</var>.
It is an error if <var>symbol2</var> is not defined in the current
translation unit.
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