Date: Wed, 14 Jun 2000 17:19:35 GMT From: zach@pabst.bendnet.com To: FreeBSD-gnats-submit@freebsd.org Subject: docs/19278: Change to Respect CLFAGS portion of Porters Handbook Message-ID: <200006141719.RAA92276@pabst.bendnet.com>
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>Number: 19278
>Category: docs
>Synopsis: Change to Respect CLFAGS portion of Porters Handbook
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-doc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Wed Jun 14 17:20:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Zach Zurflu
>Release: FreeBSD 3.4-STABLE i386
>Organization:
>Environment:
>Description:
The portion of the Porters Handbook titled Respect CFLAGS is too
brief. The unexperienced user can not understand what it means.
>How-To-Repeat:
>Fix:
--- x1663.html.orig Wed Jun 14 14:40:59 2000
+++ x1663.html Wed Jun 14 16:39:23 2000
@@ -45,6 +45,28 @@
CFLAGS</tt> variable. If it does not, please add <tt class=
"LITERAL">NO_PACKAGE=ignores cflags</tt> to the <tt class=
"FILENAME">Makefile</tt>.</p>
+
+ <p>An example of a Makefile respecting the
+ <tt class="MAKEVAR">CFLAGS</tt> variable <B>(note the
+ <tt class="MAKEVAR">+=</tt></B>):</p>
+
+<pre class="PROGRAMLISTING">
+ CFLAGS += -Wall -Werror
+</pre>
+
+ <p>An example of a Makefile which does not respect the
+ <tt class="MAKEVAR">CFLAGS</tt> variable:</p>
+
+<pre class="PROGRAMLISTING">
+ CFLAGS = -Wall -Werror
+</pre>
+
+ <p>The <tt class="MAKEVAR">CFLAGS</tt> variable is defined on
+ FreeBSD systems in /etc/make.conf. The first example appends
+ additional flags to the <tt class="MAKEVAR">CFLAGS</tt>
+ variable, preserving any system wide definitions. The second
+ example clobbers anything previously defined.</p>
+
</div>
<div class="NAVFOOTER">
>Release-Note:
>Audit-Trail:
>Unformatted:
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