From 0066b1175450fc73c7b296fef91050cb66f6d17b Mon Sep 17 00:00:00 2001
From: Colin <colin@uninsane.org>
Date: Wed, 23 Jul 2025 22:55:59 +0000
Subject: [PATCH] linkBinIntoOwnPackage: guard against the empty-bin/ case

---
 pkgs/by-name/trivial-builders/package.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/by-name/trivial-builders/package.nix b/pkgs/by-name/trivial-builders/package.nix
index c67ebc79c..80937f7e3 100644
--- a/pkgs/by-name/trivial-builders/package.nix
+++ b/pkgs/by-name/trivial-builders/package.nix
@@ -137,6 +137,14 @@
     ;
   in
     linkIntoOwnPackage pkg paths' {
+      postInstallCheck = ''
+        # assert that there's *something* in `bin/`
+        # if there isn't, the wildcard won't expand, and the `test -x` will fail.
+        binFiles=($out/bin/*)
+        for f in "''${binFiles[@]}"; do
+          test -x "$f"
+        done
+      '';
       postFixup = ''
         # not all packages ship manpages or docs,
         # but we can't know if that's the case upfront, generically.