From 9746fae5778754e5d7611a39b6d00fc3435debc5 Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@lassul.us>
Date: Sun, 26 May 2019 12:25:59 +0200
Subject: [PATCH] build-support/writers: actually run checks

---
 pkgs/build-support/writers/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/build-support/writers/default.nix b/pkgs/build-support/writers/default.nix
index 29a4bbad703e..ae7b42449fb3 100644
--- a/pkgs/build-support/writers/default.nix
+++ b/pkgs/build-support/writers/default.nix
@@ -24,6 +24,9 @@ rec {
     }) ''
       echo "#! $interpreter" > $out
       cat "$contentPath" >> $out
+      ${optionalString (check != "") ''
+        ${check} $out
+      ''}
       chmod +x $out
       ${optionalString (types.path.check nameOrPath) ''
         mv $out tmp