File 2532248d70b14a137164194e6c0eb3459b50de0f.patch of Package opam

From: Kate <kit-ty-kate@outlook.com>
Date: Mon, 24 Mar 2025 17:22:46 +0000
Subject: depexts: Speedup the installed package detection by 2% on ALT Linux, RHEL and SUSE based distributions

---
 src/state/opamSysInteract.ml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/state/opamSysInteract.ml b/src/state/opamSysInteract.ml
index 94871b108c8..99b1a438852 100644
--- a/src/state/opamSysInteract.ml
+++ b/src/state/opamSysInteract.ml
@@ -704,8 +704,9 @@ let packages_status ?(env=OpamVariable.Map.empty) config packages =
          but this behaviour isn't documented, so just to be sure, it is
          safer to add %{NAME} anyway. *)
       run_query_command "rpm" ["-qa"; "--qf"; "%{NAME}\\n[%{PROVIDES}\\n]"]
-      |> List.map OpamSysPkg.of_string
-      |> OpamSysPkg.Set.of_list
+      |> List.fold_left (fun acc name ->
+          OpamSysPkg.Set.add (OpamSysPkg.of_string name) acc)
+        OpamSysPkg.Set.empty
     in
     compute_sets sys_installed
   | Cygwin ->