From 7954fc68cbc1710c62be71007483fdbbdfad1dac Mon Sep 17 00:00:00 2001
From: Someone Serge <sergei.kozlukov@aalto.fi>
Date: Mon, 25 Dec 2023 11:56:06 +0000
Subject: [PATCH] opencv4: propagate real outputs in cxxdev even without cuda

Hotfix https://github.com/NixOS/nixpkgs/issues/276691
---
 pkgs/development/libraries/opencv/4.x.nix | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/opencv/4.x.nix b/pkgs/development/libraries/opencv/4.x.nix
index 023e56940b75..7adea04a6a84 100644
--- a/pkgs/development/libraries/opencv/4.x.nix
+++ b/pkgs/development/libraries/opencv/4.x.nix
@@ -472,7 +472,12 @@ effectiveStdenv.mkDerivation {
   postInstall = ''
     sed -i "s|{exec_prefix}/$out|{exec_prefix}|;s|{prefix}/$out|{prefix}|" \
       "$out/lib/pkgconfig/opencv4.pc"
-    mkdir $cxxdev
+    mkdir "$cxxdev"
+  ''
+  # Temporary fix for https://github.com/NixOS/nixpkgs/issues/276691
+  + lib.optionalString (!enableCuda) ''
+    mkdir -p "$cxxdev/nix-support"
+    echo "''${!outputDev}" >> "$cxxdev/nix-support/propagated-build-inputs"
   ''
   # install python distribution information, so other packages can `import opencv`
   + lib.optionalString enablePython ''