From df448f0993173bfed26be41d246902fbd9219681 Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Sun, 21 Apr 2019 17:24:49 +0200
Subject: [PATCH] lib3mf: fix pkg-config file

---
 pkgs/development/libraries/lib3mf/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/libraries/lib3mf/default.nix b/pkgs/development/libraries/lib3mf/default.nix
index 7292debfc3f..7e41743e1e0 100644
--- a/pkgs/development/libraries/lib3mf/default.nix
+++ b/pkgs/development/libraries/lib3mf/default.nix
@@ -18,6 +18,9 @@ stdenv.mkDerivation rec {
   postPatch = ''
     rmdir UnitTests/googletest
     ln -s ${gtest.src} UnitTests/googletest
+
+    # fix libdir=''${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
+    sed -i 's,=''${\(exec_\)\?prefix}/,=,' lib3MF.pc.in
   '';
 
   meta = with stdenv.lib; {