cglm: fix paths in pkg-config file

pkgs/development/libraries/cglm/default.nix

@@ -17,6 +17,13 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake ];
 
+  # https://github.com/recp/cglm/issues/249
+  postPatch = ''
+    substituteInPlace CMakeLists.txt \
+      --replace '\$'{prefix}/'$'{CMAKE_INSTALL_LIBDIR} '$'{CMAKE_INSTALL_FULL_LIBDIR} \
+      --replace '\$'{prefix}/'$'{CMAKE_INSTALL_INCLUDEDIR} '$'{CMAKE_INSTALL_FULL_INCLUDEDIR}
+  '';
+
   meta = with lib; {
     homepage = "https://github.com/recp/cglm";
     description = "Highly Optimized Graphics Math (glm) for C";