From 2059866080f73876486d11d2be85062cff7e5815 Mon Sep 17 00:00:00 2001
From: Eman Resu <78693624+quatquatt@users.noreply.github.com>
Date: Thu, 7 May 2026 01:19:14 -0400
Subject: [PATCH] stdenv/check-meta: avoid running platformMatch if we can help
 it

---
 pkgs/stdenv/generic/check-meta.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/stdenv/generic/check-meta.nix b/pkgs/stdenv/generic/check-meta.nix
index 404debbf1b06..910fe5d1aa32 100644
--- a/pkgs/stdenv/generic/check-meta.nix
+++ b/pkgs/stdenv/generic/check-meta.nix
@@ -125,7 +125,11 @@ let
   # Logical inversion of meta.availableOn for hostPlatform
   hasUnsupportedPlatform =
     let
-      anyHostPlatform = any (platformMatch hostPlatform);
+      inherit (hostPlatform) system;
+      # in almost all cases, meta.platforms is a simple list of strings, and we
+      # can just check if it contains the current system. we only run the more
+      # intensive platformMatch if necessary
+      anyHostPlatform = list: elem system list || any (platformMatch hostPlatform) list;
     in
     pkg:
     pkg ? meta.platforms && !(anyHostPlatform pkg.meta.platforms)