Merge pull request #24379 from OlivierNicole/tsan_backport_5.1_switch

Patch ocaml-variants.5.1.0~rc3+tsan with ocaml/ocaml#12541

Author: avsm

packages/ocaml-variants/ocaml-variants.5.1.0~rc3+tsan/opam

@@ -75,3 +75,10 @@ depopts: [
   "ocaml-option-address-sanitizer"
   "ocaml-option-static"
 ]
+
+
+patches: [ "check-tsan-distinguish-volatile.patch" ]
+extra-source "check-tsan-distinguish-volatile.patch" {
+  src: "https://github.com/ocaml-multicore/ocaml-tsan/commit/abb8fdb186773b2fc6e4e41b122d1df4c29b058c.patch?full_index=1"
+  checksum: "sha256=efa4449d37c3843c488caffcd06f5ebd2a7569e06f9cf98f79458506c549bd2c"
+}