doc: Mention store sharing with Nix; update `package' example.
* doc/guix.texi: Set @documentlanguage. (Installation): Add reference to `INSTALL' and `README'. (Requirements): Mention store sharing with Nix. (Defining Packages): Update example to include `use-modules' clauses and to use (guix licenses).
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@ -4,6 +4,7 @@
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@c %**start of header
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@setfilename guix.info
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@documentencoding UTF-8
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@documentlanguage en
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@settitle GNU Guix Reference Manual
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@c %**end of header
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@ -138,6 +139,10 @@ The remainder of this manual describes them.
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This section describes the software requirements of Guix, as well as how
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to install it and get ready to use it.
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The build procedure for Guix is the same as for other GNU software, and
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are not covered here. Please see the files @file{README} and
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@file{INSTALL} in the Guix source tree for additional details.
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@menu
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* Requirements:: Software needed to build and run Guix.
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* Setting Up the Daemon:: Preparing the build daemon's environment.
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@ -167,6 +172,16 @@ When a working installation of the Nix package manager is available, you
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can instead configure Guix with @code{--disable-daemon}. In that case,
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@url{http://nixos.org/nix/, Nix} replaces the three dependencies above.
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Guix is compatible with Nix, so it is possible to share the same store
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between both. To do so, you must pass @command{configure} not only the
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same @code{--with-store-dir} value, but also the same
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@code{--localstatedir} value (the latter is essential because it
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specifies where the database that store meta-data about the store is
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located, among other things.) The default values are
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@code{--with-store-dir=/nix/store} and @code{--localstatedir=/nix/var}.
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Note that @code{--disable-daemon} is orthogonal and is not required if
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your goal is to share the same store as Nix.
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@node Setting Up the Daemon
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@section Setting Up the Daemon
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@ -595,6 +610,11 @@ example, the package definition, or @dfn{recipe}, for the GNU Hello
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package looks like this:
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@example
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(use-modules (guix packages)
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(guix download)
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(guix build-system gnu)
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(guix licenses))
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(define hello
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(package
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(name "hello")
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@ -610,7 +630,7 @@ package looks like this:
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(synopsis "GNU Hello")
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(description "Yeah...")
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(home-page "http://www.gnu.org/software/hello/")
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(license "GPLv3+")))
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(license gpl3+)))
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@end example
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@noindent
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