From 7baca962de986c6635ab74a3e8cfcff8df7b875e Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Mon, 9 May 2022 09:48:25 +0300
Subject: [PATCH] usrsctp: fix paths in pkg-config file

---
 pkgs/development/libraries/usrsctp/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/libraries/usrsctp/default.nix b/pkgs/development/libraries/usrsctp/default.nix
index 64b1debc0ce5..af8979c79d13 100644
--- a/pkgs/development/libraries/usrsctp/default.nix
+++ b/pkgs/development/libraries/usrsctp/default.nix
@@ -13,6 +13,13 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
+  # https://github.com/sctplab/usrsctp/issues/662
+  postPatch = ''
+    substituteInPlace usrsctplib/CMakeLists.txt \
+      --replace '$'{exec_prefix}/'$'{CMAKE_INSTALL_LIBDIR} '$'{CMAKE_INSTALL_FULL_LIBDIR} \
+      --replace '$'{prefix}/'$'{CMAKE_INSTALL_INCLUDEDIR} '$'{CMAKE_INSTALL_FULL_INCLUDEDIR}
+  '';
+
   meta = with lib; {
     homepage = "https://github.com/sctplab/usrsctp";
     description = "A portable SCTP userland stack";