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Diffstat (limited to 'doc/guix.texi')
| -rw-r--r-- | doc/guix.texi | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 10eb344c71..c14272ed9a 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -1305,7 +1305,8 @@ store. To instruct the daemon to perform a build action, users actually provide it with a @dfn{derivation}. A derivation is a low-level representation of the build actions to be taken, and the environment in which they should occur---derivations are to package definitions what -assembly is to C programs. +assembly is to C programs. The term ``derivation'' comes from the fact +that build results @emph{derive} from them. This chapter describes all these APIs in turn, starting from high-level package definitions. @@ -2243,7 +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}. |