From f1cf3829b9776df5307b5ad43da30d8e9639e4b9 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Wed, 2 Jul 2025 10:50:03 +0200
Subject: [PATCH] binutils-unwrapped-all-targets: fix build on Darwin

gas isn't built for Darwin, so previously this failed when trying to
install it:

	make: Entering directory '/private/tmp/nix-build-binutils-2.44.drv-0/build'
	make: *** /private/tmp/nix-build-binutils-2.44.drv-0/build-arm64-apple-darwin/gas: No such file or directory.  Stop.
	make: Leaving directory '/private/tmp/nix-build-binutils-2.44.drv-0/build'

Fixes: 437ad124ac97 ("binutils-unwrapped-all-targets: per-target gas")
---
 pkgs/development/tools/misc/binutils/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/tools/misc/binutils/default.nix b/pkgs/development/tools/misc/binutils/default.nix
index 5c7ddde8c0c6..8e6f6605079d 100644
--- a/pkgs/development/tools/misc/binutils/default.nix
+++ b/pkgs/development/tools/misc/binutils/default.nix
@@ -38,6 +38,9 @@ let
   # on the PATH to both be usable.
   targetPrefix = lib.optionalString (targetPlatform != hostPlatform) "${targetPlatform.config}-";
 
+  # gas is disabled for some targets via noconfigdirs in configure.
+  targetHasGas = !stdenv.targetPlatform.isDarwin;
+
   # gas isn't multi-target, even with --enable-targets=all, so we do
   # separate builds of just gas for each target.
   #
@@ -45,7 +48,9 @@ let
   # additional targets here as required.
   allGasTargets =
     allGasTargets'
-    ++ lib.optional (!lib.elem targetPlatform.config allGasTargets') targetPlatform.config;
+    ++ lib.optional (
+      targetHasGas && !lib.elem targetPlatform.config allGasTargets'
+    ) targetPlatform.config;
   allGasTargets' = [
     "aarch64-unknown-linux-gnu"
     "alpha-unknown-linux-gnu"
@@ -328,6 +333,8 @@ stdenv.mkDerivation (finalAttrs: {
           $makeFlags "''${makeFlagsArray[@]}" $installFlags "''${installFlagsArray[@]}" \
           install-exec-bindir
       done
+    ''
+    + lib.optionalString (withAllTargets && targetHasGas) ''
       ln -s $out/bin/${stdenv.targetPlatform.config}-as $out/bin/as
     '';