libunarr: fix build on darwin

pkgs/development/libraries/libunarr/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, cmake }:
+{ lib, stdenv, fetchurl, fetchpatch, cmake }:
 
 stdenv.mkDerivation rec {
   pname = "libunarr";
@@ -16,11 +16,16 @@ stdenv.mkDerivation rec {
     substituteInPlace pkg-config.pc.cmake \
       --replace '$'{prefix}/@CMAKE_INSTALL_LIBDIR@ @CMAKE_INSTALL_FULL_LIBDIR@ \
       --replace '$'{prefix}/@CMAKE_INSTALL_INCLUDEDIR@ @CMAKE_INSTALL_FULL_INCLUDEDIR@
+  ''
+  # ld: unknown option: --no-undefined
+  + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace CMakeLists.txt \
+      --replace '-Wl,--no-undefined -Wl,--as-needed' '-Wl,-undefined,error'
   '';
 
   meta = with lib; {
     homepage = "https://github.com/selmf/unarr";
     description = "A lightweight decompression library with support for rar, tar and zip archives";
-    license = licenses.lgpl3;
+    license = licenses.lgpl3Plus;
   };
 }