From e27d7aa3b7894be6dc8865ab05d9e0e18d1dd2fd Mon Sep 17 00:00:00 2001
From: sempiternal-aurora
 <78790545+sempiternal-aurora@users.noreply.github.com>
Date: Mon, 8 Jun 2026 13:16:22 +1000
Subject: [PATCH] gprbuild-boot: Mark broken on darwin

---
 pkgs/development/ada-modules/gprbuild/boot.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/ada-modules/gprbuild/boot.nix b/pkgs/development/ada-modules/gprbuild/boot.nix
index 0f8227d50d35..f23628f37b7a 100644
--- a/pkgs/development/ada-modules/gprbuild/boot.nix
+++ b/pkgs/development/ada-modules/gprbuild/boot.nix
@@ -110,5 +110,11 @@ stdenv.mkDerivation {
     license = lib.licenses.gpl3Plus;
     maintainers = [ lib.maintainers.sternenseemann ];
     platforms = lib.platforms.all;
+    # gprbuild-boot builds on darwin, but `gprconfig` stack overflows whenever
+    # it runs during the enumeration of available toolchains
+    # This doesn't seem to be a problem with our compiler definition `./nixpkgs-gnat.xml`
+    # as a gprbuild system without that configuration also stack faults.
+    # Maybe a linker issue?
+    broken = stdenv.hostPlatform.isDarwin;
   };
 }