From 64219b1d6c6170f1a400dc543a9a3d2522ac52da Mon Sep 17 00:00:00 2001
From: Niclas Zeising <zeising@FreeBSD.org>
Date: Thu, 4 Oct 2012 18:39:41 +0000
Subject: [PATCH] Add a small example on how to check if a ports option is
unset.
Reviewed by: bapt
Approved by: joel (mentor)
---
en_US.ISO8859-1/books/porters-handbook/book.xml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/en_US.ISO8859-1/books/porters-handbook/book.xml b/en_US.ISO8859-1/books/porters-handbook/book.xml
index 9e93b69397..983a912c66 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.xml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.xml
@@ -4474,6 +4474,13 @@ RUN_DEPENDS+= bar:${PORTSDIR}/bar/bar
.include <bsd.port.mk></programlisting>
</example>
+ <example id ="ports-options-check-unset">
+ <title>Check for Unset Port <makevar>OPTIONS</makevar></title>
+ <programlisting>.if empty(PORT_OPTIONS:MEXAMPLES)
+CONFIGURE_ARGS+=--without-examples
+.endif</programlisting>
+ </example>
+
<example id="ports-options-practical-use">
<title>Practical Use of <makevar>OPTIONS</makevar></title>
@@ -4508,6 +4515,10 @@ CONFIGURE_ARGS+= --without-postgres
LIB_DEPENDS+= icuuc:${PORTSDIR}/devel/icu
.endif
+.if empty(PORT_OPTIONS:MEXAMPLES)
+CONFIGURE_ARGS+= --without-examples
+.endif
+
# Check other OPTIONS
.include <bsd.port.mk></programlisting>