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-rw-r--r--doc/guix.texi8
1 files changed, 6 insertions, 2 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 57030102ca..9bf177a185 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -8061,8 +8061,8 @@ inputs.
Look up @var{name} among @var{package}'s inputs (or native, propagated,
or direct inputs). Return it if found, @code{#f} otherwise.
-@var{name} is the name of a package depended on. Here's how you might
-use it:
+@var{name} is the name of a package or the file name of an origin
+depended on. Here's how you might use it:
@lisp
(use-modules (guix packages) (gnu packages base))
@@ -8073,6 +8073,10 @@ use it:
In this example we obtain the @code{gmp} package that is among the
direct inputs of @code{coreutils}.
+
+When looking up an origin, use the name that appears in the origin's
+@code{file-name} field or its default file name---e.g.,
+@code{"foo-1.2.tar.gz"}.
@end deffn
@cindex development inputs, of a package