From 8f277e153794cdab0b676e09a6ed67d88e583cc4 Mon Sep 17 00:00:00 2001
From: Philip Taron <philip.taron@gmail.com>
Date: Tue, 7 Oct 2025 14:49:58 -0700
Subject: [PATCH] nixComponents: gate GCC flags on Nix 2.32+

This is based on advice from @xokdvium on Matrix.
---
 .../package-management/nix/modular/packaging/components.nix  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/package-management/nix/modular/packaging/components.nix b/pkgs/tools/package-management/nix/modular/packaging/components.nix
index f140fb4a9f49..2a8b5e12a4c4 100644
--- a/pkgs/tools/package-management/nix/modular/packaging/components.nix
+++ b/pkgs/tools/package-management/nix/modular/packaging/components.nix
@@ -154,7 +154,10 @@ let
   };
 
   mesonLibraryLayer = finalAttrs: prevAttrs: {
-    preConfigure =
+    # See https://github.com/NixOS/nix/pull/14105 -- enabling this only for Nix 2.32+ as there are
+    # reports of undefined behavior on previous versions. Note that this does //not// use
+    # `finalAttrs.version` in order to avoid infinite recursion.
+    ${if lib.versionOlder version "2.32" then null else "preConfigure"} =
       let
         interpositionFlags = [
           "-fno-semantic-interposition"