<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>PKG_ADD and PKG_DEL Directives (GNU Octave (version 5.1.0))</title> <meta name="description" content="PKG_ADD and PKG_DEL Directives (GNU Octave (version 5.1.0))"> <meta name="keywords" content="PKG_ADD and PKG_DEL Directives (GNU Octave (version 5.1.0))"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <link href="index.html#Top" rel="start" title="Top"> <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Creating-Packages.html#Creating-Packages" rel="up" title="Creating Packages"> <link href="Missing-Components.html#Missing-Components" rel="next" title="Missing Components"> <link href="The-INDEX-File.html#The-INDEX-File" rel="prev" title="The INDEX File"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> <link rel="stylesheet" type="text/css" href="octave.css"> </head> <body lang="en"> <a name="PKG_005fADD-and-PKG_005fDEL-Directives"></a> <div class="header"> <p> Next: <a href="Missing-Components.html#Missing-Components" accesskey="n" rel="next">Missing Components</a>, Previous: <a href="The-INDEX-File.html#The-INDEX-File" accesskey="p" rel="prev">The INDEX File</a>, Up: <a href="Creating-Packages.html#Creating-Packages" accesskey="u" rel="up">Creating Packages</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="PKG_005fADD-and-PKG_005fDEL-Directives-1"></a> <h4 class="subsection">37.4.3 PKG_ADD and PKG_DEL Directives</h4> <p>If the package contains files called <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> or <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> the commands in these files will be executed when the package is added or removed from the users path. In some situations such files are a bit cumbersome to maintain, so the package manager supports automatic creation of such files. If a source file in the package contains a <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> or <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> directive they will be added to either the <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> or <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> files. </p> <p>In <code>m</code>-files a <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> directive looks like this </p> <div class="example"> <pre class="example">## PKG_ADD: some_octave_command </pre></div> <p>Such lines should be added before the <code>function</code> keyword. In C++ files a <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> directive looks like this </p> <div class="example"> <pre class="example">// PKG_ADD: some_octave_command </pre></div> <p>In both cases <code>some_octave_command</code> should be replaced by the command that should be placed in the <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> file. <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> directives work in the same way, except the <code><span class="nolinebreak">PKG_ADD</span></code><!-- /@w --> keyword is replaced with <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> and the commands get added to the <code><span class="nolinebreak">PKG_DEL</span></code><!-- /@w --> file. </p> </body> </html>