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-rw-r--r--doc/guix.texi14
1 files changed, 13 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 79942d7cd1..4446909ed6 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -7761,7 +7761,19 @@ provides all the tools one would expect for basic user and administrator
tasks---including the GNU Core Utilities, the GNU Networking Utilities,
the GNU Zile lightweight text editor, @command{find}, @command{grep},
etc. The example above adds tcpdump to those, taken from the @code{(gnu
-packages admin)} module (@pxref{Package Modules}).
+packages admin)} module (@pxref{Package Modules}). The
+@code{(list package output)} syntax can be used to add a specific output
+of a package:
+
+@lisp
+(use-modules (gnu packages))
+(use-modules (gnu packages dns))
+
+(operating-system
+ ;; ...
+ (packages (cons (list bind "utils")
+ %base-packages)))
+@end lisp
@findex specification->package
Referring to packages by variable name, like @var{tcpdump} above, has