From 4d9617261629c742697d79fae42871a514c799cb Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Tue, 28 Oct 2025 21:24:22 +0000
Subject: [PATCH] cairo: fix the eval on `mingwW64`
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In https://github.com/NixOS/nixpkgs/issues/456516
user reported eval fails as:

    $ nix build --no-link -f. pkgsCross.mingwW64.cairo
    error:
       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating derivation 'cairo-x86_64-w64-mingw32-1.18.4'
         whose name attribute is located at pkgs/stdenv/generic/make-derivation.nix:544:13

       … while evaluating attribute 'mesonFlags' of derivation 'cairo-x86_64-w64-mingw32-1.18.4'
         at pkgs/stdenv/generic/make-derivation.nix:824:11:
          823|           cmakeFlags = makeCMakeFlags attrs;
          824|           mesonFlags = makeMesonFlags attrs;
             |           ^
          825|         }

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Unknown value for ipc_rmid_deferred_release

The change will not fix `caori` build on `windows`
but at least will report unsupported dependencies.
---
 pkgs/by-name/ca/cairo/package.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/ca/cairo/package.nix b/pkgs/by-name/ca/cairo/package.nix
index 727afc713046..fe6a3cb29f06 100644
--- a/pkgs/by-name/ca/cairo/package.nix
+++ b/pkgs/by-name/ca/cairo/package.nix
@@ -100,8 +100,10 @@ stdenv.mkDerivation (
             linux = "true";
             freebsd = "true";
             netbsd = "false";
+            windows = "false";
           }
-          .${stdenv.hostPlatform.parsed.kernel.name} or (throw "Unknown value for ipc_rmid_deferred_release")
+          .${stdenv.hostPlatform.parsed.kernel.name}
+            or (throw "Unknown value for ipc_rmid_deferred_release on ${stdenv.hostPlatform.parsed.kernel.name}")
         }
       ''}"
     ];