branch master updated: gnu: tch-ipv6: Build reproducibly.

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     new 2f3dec3de7 gnu: tch-ipv6: Build reproducibly.
2f3dec3de7 is described below

commit 2f3dec3de76011b2bd7b19e50a1b12b8d6697a34
Author: Vagrant Cascadian <vagrant@reproducible-builds.org>
AuthorDate: Fri Jun 10 15:53:36 2022 -0700

    gnu: tch-ipv6: Build reproducibly.
    
    * gnu/packages/networking.scm (thc-ipv6)[arguments]: Add
      'use-source-date-epoch-in-manpages phase.
---
 gnu/packages/networking.scm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gnu/packages/networking.scm b/gnu/packages/networking.scm
index cd25ca3dce..bfb4e32296 100644
--- a/gnu/packages/networking.scm
+++ b/gnu/packages/networking.scm
@@ -2772,6 +2772,12 @@ updates to the zebra daemon.")
          #:tests? #f ; No test suite.
          #:phases
          (modify-phases %standard-phases
+           (add-after 'unpack 'use-source-date-epoch-in-manpages
+             ;; For reproducible builds
+             (lambda _
+               (substitute* "Makefile"
+                 (("date --iso-8601")
+                  "date --iso-8601 --utc --date=@$(SOURCE_DATE_EPOCH)"))))
            (delete 'configure) ; No ./configure script.
            (add-before 'build 'patch-paths
              (lambda _