From cb459fb72d9281e3983b560d94f7c3654a70db31 Mon Sep 17 00:00:00 2001
From: Artturin <Artturin@artturin.com>
Date: Mon, 5 Dec 2022 16:57:27 +0200
Subject: [PATCH] stdenv.mkDerivation: workaround hacks in perl
 cross-compilation

---
 pkgs/stdenv/generic/make-derivation.nix | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/pkgs/stdenv/generic/make-derivation.nix b/pkgs/stdenv/generic/make-derivation.nix
index 7255f2ec9e157..bb40abfc911b2 100644
--- a/pkgs/stdenv/generic/make-derivation.nix
+++ b/pkgs/stdenv/generic/make-derivation.nix
@@ -200,7 +200,18 @@ let
         if (lib.isDerivation dep && dep ? stdenv) then
           if (stdenv.buildPlatform.canExecute dep.stdenv.hostPlatform)
           then dep
-          else lib.warn "${dep.name} in ${attrs.name or attrs.pname}'s ${listName} not executable on build" dep
+          else
+            # TODO(@Artturin) remove workaround
+            # if something has __spliced then it has been spliced but may not have a buildHost
+            # example: perl's cross-compilation is bad and has some hacks
+            # perl's mini output is only created when buildPlatfom != hostPlatform
+            # > pkgsCross.aarch64-multiplatform.buildPackages.perl.mini
+            # <does not exist>
+            # > pkgsCross.aarch64-multiplatform.buildPackages.__splicedPackages.perl.mini.__spliced
+            # { targetTarget = «derivation ...perl-aarch64-unknown-linux-gnu...»; }
+            if (!dep ? __spliced) then
+              lib.warn "${dep.name} in ${attrs.name or attrs.pname}'s ${listName} not executable on build" dep
+            else dep
         else dep;
 
       nameToSplicedName = {