From 3bbc6d7842fcfeb8c575f9581e00e185229c2069 Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Tue, 17 May 2022 14:17:42 +0300
Subject: [PATCH] libcotp: fix paths in pkg-config file

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

diff --git a/pkgs/development/libraries/libcotp/default.nix b/pkgs/development/libraries/libcotp/default.nix
index 6fb7b3879c20..9d1b51a03ddc 100644
--- a/pkgs/development/libraries/libcotp/default.nix
+++ b/pkgs/development/libraries/libcotp/default.nix
@@ -14,6 +14,13 @@ stdenv.mkDerivation rec {
   buildInputs = [ libbaseencode libgcrypt ];
   nativeBuildInputs = [ cmake pkg-config ];
 
+  # https://github.com/paolostivanin/libcotp/issues/32
+  postPatch = ''
+    substituteInPlace cotp.pc.in \
+      --replace '$'{prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@ \
+      --replace '$'{prefix}/@CMAKE_INSTALL_INCLUDEDIR@ @CMAKE_INSTALL_FULL_INCLUDEDIR@
+  '';
+
   meta = with lib; {
     description = "C library that generates TOTP and HOTP";
     homepage = "https://github.com/paolostivanin/libcotp";