From 0fb6766ccbaa1c030a562f782fcb0ff8f0133b5f Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Tue, 17 May 2022 15:27:07 +0300
Subject: [PATCH] libmodule: fix paths in pkg-config file

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

diff --git a/pkgs/development/libraries/libmodule/default.nix b/pkgs/development/libraries/libmodule/default.nix
index d77d2bcbdcd7..dd98908f3111 100644
--- a/pkgs/development/libraries/libmodule/default.nix
+++ b/pkgs/development/libraries/libmodule/default.nix
@@ -17,6 +17,13 @@ stdenv.mkDerivation rec {
     pkg-config
   ];
 
+  # https://github.com/FedeDP/libmodule/issues/7
+  postPatch = ''
+    substituteInPlace Extra/libmodule.pc.in \
+      --replace '$'{exec_prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@ \
+      --replace '$'{prefix}/@CMAKE_INSTALL_INCLUDEDIR@ @CMAKE_INSTALL_FULL_INCLUDEDIR@
+  '';
+
   meta = with lib; {
     description = "C simple and elegant implementation of an actor library";
     homepage = "https://github.com/FedeDP/libmodule";