avidemux: add ${out}/lib to LD_LIBRARY_PATH

fixes NixOS#239424

pkgs/applications/video/avidemux/default.nix

@@ -57,7 +57,12 @@ stdenv.mkDerivation rec {
 
   buildCommand = let
     wrapWith = makeWrapper: filename:
-      "${makeWrapper} ${filename} --set ADM_ROOT_DIR $out --prefix LD_LIBRARY_PATH : ${libXext}/lib";
+      ''
+        ${makeWrapper} ${filename} \
+          --set ADM_ROOT_DIR $out \
+          --prefix LD_LIBRARY_PATH : ${libXext}/lib \
+          --prefix LD_LIBRARY_PATH : $out/lib
+      '';
     wrapQtApp = wrapWith "wrapQtApp";
     wrapProgram = wrapWith "wrapProgram";
   in ''
@@ -93,13 +98,5 @@ stdenv.mkDerivation rec {
     # "CPU not supported" errors on AArch64
     platforms = [ "i686-linux" "x86_64-linux" ];
     license = licenses.gpl2;
-    # Downstream we experience:
-    #
-    # https://github.com/NixOS/nixpkgs/issues/239424
-    #
-    # Upstream doesn't have a contact page / Bug tracker, so it's not easy to
-    # notify them about it. Using firejail might help, as some commented
-    # downstream.
-    broken = true;
   };
 }