01/21: gnu: rav1e: Force building with rust edition 2018.

[guix-commits]

efraim pushed a commit to branch master
in repository guix.

commit 730f7c096df36f087a7cf9d289cd0f0bece1a5c2
Author: Efraim Flashner <efraim@flashner.co.il>
AuthorDate: Fri Sep 30 12:43:44 2022 +0300

    gnu: rav1e: Force building with rust edition 2018.
    
    * gnu/packages/video.scm (rav1e)[arguments]: Add phase to force all
    input crates to be built with rust edition 2018.
---
 gnu/packages/video.scm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index ca6148b078..6a14a85b74 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -5285,6 +5285,12 @@ result in several formats:
              (substitute* "Cargo.toml"
                ;; Allow using more recent versions of
                (("~3.1.2") "~3"))))
+         (add-after 'configure 'force-rust-edition-2018
+           (lambda* (#:key vendor-dir #:allow-other-keys)
+             ;; Force all the dependencies to not be higher than edition 2018.
+             (with-fluids ((%default-port-encoding #f))
+               (substitute* (find-files vendor-dir "Cargo.toml")
+                 (("edition = \\\"2021\\\"") "edition = \"2018\"")))))
          (replace 'build
            (lambda* (#:key outputs #:allow-other-keys)
              (let ((out (assoc-ref outputs "out")))