bug#26366: [PATCH] doc: Specify that Guix should be built from within a container.

[Clément Lassieur]

* doc/contributing.texi: add '--container' and '--network' options to the
'guix environment guix' command.
---
 doc/contributing.texi | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index bbc93424b..dbafa4139 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -45,19 +45,19 @@ the installation instructions (@pxref{Requirements}).
 @end itemize
 
 The easiest way to set up a development environment for Guix is, of
-course, by using Guix!  The following command starts a new shell where
-all the dependencies and appropriate environment variables are set up to
-hack on Guix:
+course, by using Guix!  The following command starts a new shell within
+an isolated container where all the dependencies and appropriate
+environment variables are set up to hack on Guix:
 
 @example
-guix environment guix
+guix environment --container --network guix
 @end example
 
 @xref{Invoking guix environment}, for more information on that command.
 Extra dependencies can be added with @option{--ad-hoc}:
 
 @example
-guix environment guix --ad-hoc help2man git strace
+guix environment --container --network guix --ad-hoc help2man git strace
 @end example
 
 Run @command{./bootstrap} to generate the build system infrastructure
-- 
2.12.2