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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 cfa5aac326..847c73ab8c 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -1483,12 +1483,16 @@ The @var{options} may be zero or more of the following:
@item --expression=@var{expr}
@itemx -e @var{expr}
-Build the package @var{expr} evaluates to.
+Build the package or derivation @var{expr} evaluates to.
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
+(@pxref{The Store Monad}). The procedure must return a derivation as a
+monadic value, which is then passed through @code{run-with-store}.
+
@item --source
@itemx -S
Build the packages' source derivations, rather than the packages