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-rw-r--r--doc/guix.texi6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index c1e51eac94..c14272ed9a 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2244,7 +2244,11 @@ For example, @var{expr} may be @code{(@@ (gnu packages guile)
guile-1.8)}, which unambiguously designates this specific variant of
version 1.8 of Guile.
-Alternately, @var{expr} may refer to a zero-argument monadic procedure
+Alternately, @var{expr} may be a G-expression, in which case it is used
+as a build program passed to @code{gexp->derivation}
+(@pxref{G-Expressions}).
+
+Lastly, @var{expr} may refer to a zero-argument monadic procedure
(@pxref{The Store Monad}). The procedure must return a derivation as a
monadic value, which is then passed through @code{run-with-store}.