docs/159047: SRC_BASE is in bsd.port.mk and need not be set in port Makefiles

[Ben Kaduk]

>Number:         159047
>Category:       docs
>Synopsis:       SRC_BASE is in bsd.port.mk and need not be set in port Makefiles
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 19 22:20:11 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Ben Kaduk
>Release:        9-current
>Organization:
MIT SIPB
>Environment:
n/a
>Description:
Since r1.662 (Fri Dec 17 03:21:19 2010 UTC (7 months ago) by linimon), SRC_BASE has been defined in bsd.port.mk; individual port Makefiles need not set it themselves.  Update the porter's handbook example for ports that require kernel sources, accordingly.

Prodded-by: zi
>How-To-Repeat:

>Fix:


Patch attached with submission follows:

--- book.sgml.orig	2011-07-19 18:11:40.000000000 -0400
+++ book.sgml	2011-07-19 18:12:34.000000000 -0400
@@ -8857,9 +8857,7 @@
 	kernel source files so that the port can compile.  Here is the
 	correct way to determine if the user has them installed:</para>
 
-      <programlisting>SRC_BASE?=      /usr/src
-
-.if !exists(${SRC_BASE}/sys/Makefile)
+      <programlisting>.if !exists(${SRC_BASE}/sys/Makefile)
 IGNORE=         requires kernel sources to be installed
 .endif</programlisting>
     </sect1>


>Release-Note:
>Audit-Trail:
>Unformatted: