svn commit: r47032 - head/en_US.ISO8859-1/books/porters-handbook/makefiles
Mathieu Arnold <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.cvs.doc |
|---|---|
| Message-ID | <[email protected]> |
Author: mat
Date: Tue Jul 21 09:48:47 2015
New Revision: 47032
URL: https://svnweb.freebsd.org/changeset/doc/47032
Log:
Add a note saying not to use := in *_DEPENDS variables.
Approved by: wblock (mentor)
Sponsored by: Absolight
Differential Revision: https://reviews.freebsd.org/D3109
Modified:
head/en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml
Modified: head/en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml
==============================================================================
--- head/en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml Mon Jul 20 23:33:07 2015 (r47031)
+++ head/en_US.ISO8859-1/books/porters-handbook/makefiles/chapter.xml Tue Jul 21 09:48:47 2015 (r47032)
@@ -3290,6 +3290,14 @@ ALWAYS_KEEP_DISTFILES= yes
other:${PORTSDIR}/lang/other
BUILD_DEPENDS= ${MY_DEPENDS}
RUN_DEPENDS= ${MY_DEPENDS}</programlisting>
+
+ <important>
+ <para><emphasis>Do not</emphasis> use <literal>:=</literal>
+ to assign <varname>BUILD_DEPENDS</varname> to
+ <varname>RUN_DEPENDS</varname> or vice-versa. All
+ variables are expanded immediately, which is exactly the
+ wrong thing to do and almost always a failure.</para>
+ </important>
</sect2>
<sect2 xml:id="makefile-build_depends">
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