[bug#38455] [PATCH] doc: Mention how to test against make / guix pull breakage.

[Pierre Neidhardt]

* doc/contributing.texi (Submitting Patches): Mention commands in the check
  list.
---
 doc/contributing.texi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index ee72b2f94d..04a4ba3e1a 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -961,6 +961,16 @@ often better to clone the repository.  Don't use the 
@command{name} field in
 the URL: it is not very useful and if the name changes, the URL will probably
 be wrong.
 
+@item
+Make sure your changes do not break Guix: rebuild it with
+@example
+guix environment guix -- make
+@end example
+and simulate a @code{guix pull} with
+@example
+guix pull --url=/path/to/your/checkout --dry-run
+@end example
+
 @end enumerate
 
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-- 
2.23.0