From 0b960b8595ed799fb3bdf74640355f5a20d7a483 Mon Sep 17 00:00:00 2001
From: Shelvacu <git@shelvacu.com>
Date: Wed, 24 Dec 2025 13:08:47 -0800
Subject: [PATCH] srcOnly: override output{Dev,Bin,...}. fixes #308050

This wouldn't matter, except pkgs/build-support/setup-hooks/multiple-outputs.sh uses these and errors if they're set to a non-existent output.

Ex: if `outputDev=dev`, then multiple-outputs tries to set `outputInclude=$dev`, but `dev` isn't set.
---
 pkgs/build-support/src-only/default.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkgs/build-support/src-only/default.nix b/pkgs/build-support/src-only/default.nix
index b732c6156041..f44e41a62eef 100644
--- a/pkgs/build-support/src-only/default.nix
+++ b/pkgs/build-support/src-only/default.nix
@@ -54,6 +54,19 @@ let
 
     dontInstall = false;
     installPhase = "cp -pr --reflink=auto -- . $out";
+
+    # the original derivation might've set something like outputDev = "lib", but "lib" isn't an output anymore
+    # some things get confused and error if one of these is set to an output that doesn't exist
+    # ex: pkgs/build-support/setup-hooks/multiple-outputs.sh
+    outputDev = "out";
+    outputBin = "out";
+    outputInclude = "out";
+    outputLib = "out";
+    outputDoc = "out";
+    outputDevdoc = "out";
+    outputMan = "out";
+    outputDevman = "out";
+    outputInfo = "out";
   };
 in