svn commit: r50621 - head/en_US.ISO8859-1/books/porters-handbook/order

Author: mat
Date: Wed Aug  2 12:19:47 2017
New Revision: 50621
URL: https://svnweb.freebsd.org/changeset/doc/50621

Log:
  Add an example to the Options and Helpers section.
  
  Sponsored by:	Absolight, The FreeBSD Foundation

Modified:
  head/en_US.ISO8859-1/books/porters-handbook/order/chapter.xml   (contents, props changed)

Modified: head/en_US.ISO8859-1/books/porters-handbook/order/chapter.xml
==============================================================================
--- head/en_US.ISO8859-1/books/porters-handbook/order/chapter.xml	Wed Aug  2 12:19:45 2017	(r50620)
+++ head/en_US.ISO8859-1/books/porters-handbook/order/chapter.xml	Wed Aug  2 12:19:47 2017	(r50621)
@@ -407,7 +407,7 @@
   </sect1>
 
   <sect1 xml:id="porting-order-options">
-    <title>Options</title>
+    <title>Options and Helpers</title>
 
     <para>If the port uses the <link
 	linkend="makefile-options">options framework</link>, define
@@ -418,6 +418,43 @@
       <varname><replaceable>*</replaceable>_DESC</varname>
       descriptions, then the options helpers.  Try and sort all of
       those alphabetically.</para>
+
+    <example xml:id="porting-order-options-ex1">
+      <title>Options Variables Order Example</title>
+
+      <para>The <literal>FOO</literal> and <literal>BAR</literal>
+	options do not have a standard description, so one need to
+	be written.  The other options already have one in
+	<filename>Mk/bsd.options.desc.mk</filename> so writing one
+	is not needed.  The <literal>DOCS</literal> and
+	<literal>EXAMPLES</literal> use target helpers to install
+	their files, they are shown here for completeness, though
+	they belong in <xref linkend="porting-order-targets"/>, so
+	other variables and targets could be inserted before
+	them.</para>
+
+      <programlisting>OPTIONS_DEFINE=	DOCS EXAMPLES FOO BAR
+OPTIONS_DEFAULT=	FOO
+OPTIONS_RADIO=	SSL
+OPTIONS_RADIO_SSL=    OPENSSL GNUTLS
+OPTIONS_SUB=	yes
+
+BAR_DESC=		Enable bar support
+FOO_DESC=		Enable foo support
+
+BAR_CONFIGURE_WITH=	bar=${LOCALBASE}
+FOO_CONFIGURE_ENABLE=	foo
+GNUTLS_CONFIGURE_ON=	--with-ssl=gnutls
+OPENSSL_CONFIGURE_ON=	--with-ssl=openssl
+
+post-install-DOCS-on:
+      ${MKDIR} ${STAGEDIR}${DOCSDIR}
+      cd ${WRKSRC}/doc &amp;&amp; ${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR}
+
+post-install-EXAMPLES-on:
+      ${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
+      cd ${WRKSRC}/ex &amp;&amp; ${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR}</programlisting>
+    </example>
   </sect1>
 
   <sect1 xml:id="porting-order-rest">
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