From a6ef202baf4bd11a09980c5125f09644fbf510a1 Mon Sep 17 00:00:00 2001
From: Alexander Shpilkin <ashpilkin@gmail.com>
Date: Wed, 18 May 2022 21:44:27 +0300
Subject: [PATCH] seexpr: fix path in pkg-config file

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

diff --git a/pkgs/development/compilers/seexpr/default.nix b/pkgs/development/compilers/seexpr/default.nix
index b07a9159933..210daae3745 100644
--- a/pkgs/development/compilers/seexpr/default.nix
+++ b/pkgs/development/compilers/seexpr/default.nix
@@ -31,6 +31,12 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake ];
   buildInputs = [ libGLU libpng zlib qt4 python3Packages.pyqt4 python3Packages.boost bison flex ];
 
+  # https://github.com/wdas/SeExpr/issues/106
+  postPatch = ''
+    substituteInPlace src/build/seexpr2.pc.in \
+      --replace '$'{prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@
+  '';
+
   meta = with lib; {
     description = "Embeddable expression evaluation engine from Disney Animation";
     homepage = "https://wdas.github.io/SeExpr/";