commit: 9f29f77794f9329b6f5f5e1e2478bbefad9a8b6a
Author: Anthony Ryan <anthonyryan1 <AT> gmail <DOT> com>
AuthorDate: Tue Aug 19 21:19:41 2014 +0000
Commit: Markos Chandras <hwoarang <AT> gentoo <DOT> org>
CommitDate: Sat Oct 18 17:40:13 2014 +0000
URL:
http://sources.gentoo.org/gitweb/?p=proj/devmanual.git;a=commit;h=9f29f777
Document use dependency defaults on this section of the devmanual
---
general-concepts/dependencies/text.xml | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/general-concepts/dependencies/text.xml
b/general-concepts/dependencies/text.xml
index 8586db6..dc95e28 100644
--- a/general-concepts/dependencies/text.xml
+++ b/general-concepts/dependencies/text.xml
@@ -447,7 +447,6 @@ In order to use built with use dependencies you must
specify <c>EAPI="2"</c>.
Available specifiers are:
</p>
-<p>
<table>
<tr>
<th>Specifier</th>
@@ -466,13 +465,11 @@ Available specifiers are:
<ti>foo must have bar disabled and baz enabled.</ti>
</tr>
</table>
-</p>
<p>
There are also shortcuts for conditional situations:
</p>
-<p>
<table>
<tr>
<th>Compact form</th>
@@ -495,9 +492,25 @@ There are also shortcuts for conditional situations:
<ti><c>bar? ( app-misc/foo[-bar] ) !bar? ( app-misc/foo[bar] )</c></ti>
</tr>
</table>
+
+<subsection>
+<title>Use dependency defaults</title>
+<body>
+
+<p>
+If a dependency is introducing or removing a <c>USE</c> flag in new versions,
a use
+dependency default may be used. Appending a <c>(+)</c> or <c>(-)</c> suffix
will indicate
+whether the absence of the flag from a particular version should indicate its
+presence or absence.
+</p>
+<p>
+<c>>=dev-libs/boost-1.48[threads(+)]</c> will treat all versions without
<c>threads</c> as having it set.
</p>
</body>
+</subsection>
+
+</body>
</section>
<section>
