06/20: gnu: mercurial: Adjust for grep 3.8.

[guix-commits]

mbakke pushed a commit to branch master
in repository guix.

commit 003fdf0a9d3067dcb747c30cb20db4c215affc8a
Author: Marius Bakke <marius@gnu.org>
AuthorDate: Sat Sep 10 22:59:50 2022 +0200

    gnu: mercurial: Adjust for grep 3.8.
    
    * gnu/packages/version-control.scm (mercurial)[source](modules, snippet): 
New
    fields.
---
 gnu/packages/version-control.scm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 08bd80b586..a731e1236c 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -1745,7 +1745,14 @@ execution of any hook written in any language before 
every commit.")
                                       "mercurial-openssl-compat.patch"))
              (sha256
               (base32
-               "1nl2726szaxyrxlyssrsir5c6vb4ci0i6g969i6xaahw1nidgica"))))
+               "1nl2726szaxyrxlyssrsir5c6vb4ci0i6g969i6xaahw1nidgica"))
+             (modules '((guix build utils)))
+             (snippet
+              '(substitute* (find-files "tests" "\\.(t|sh)$")
+                 ;; grep 3.8 emits deprecation warnings for 'egrep' and
+                 ;; 'fgrep' which breaks expected test output.
+                 (("egrep") "grep -E")
+                 (("fgrep") "grep -F")))))
     (build-system gnu-build-system)
     (arguments
      `(#:make-flags