From ca049040de130c77f671fef17442ab60da465c0b Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Mon, 9 May 2022 15:58:02 +0300
Subject: [PATCH] ffmpegthumbnailer: fix path in pkg-config file

---
 pkgs/development/libraries/ffmpegthumbnailer/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/libraries/ffmpegthumbnailer/default.nix b/pkgs/development/libraries/ffmpegthumbnailer/default.nix
index cb7b8214c57d..bfe8f80032dd 100644
--- a/pkgs/development/libraries/ffmpegthumbnailer/default.nix
+++ b/pkgs/development/libraries/ffmpegthumbnailer/default.nix
@@ -16,6 +16,12 @@ stdenv.mkDerivation rec {
   buildInputs = [ ffmpeg libpng libjpeg ];
   cmakeFlags = [ "-DENABLE_THUMBNAILER=ON" ];
 
+  # https://github.com/dirkvdb/ffmpegthumbnailer/issues/215
+  postPatch = ''
+    substituteInPlace libffmpegthumbnailer.pc.in \
+      --replace '$'{exec_prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@
+  '';
+
   meta = with lib;  {
     homepage = "https://github.com/dirkvdb/ffmpegthumbnailer";
     description = "A lightweight video thumbnailer";