$NetBSD: patch-gnuradio-runtime_lib_constants.cc.in,v 1.3 2022/01/16 18:06:25 tnn Exp $

Override broken PREFIX detection.

--- gnuradio-runtime/lib/constants.cc.in.orig	2022-01-14 15:27:04.000000000 +0000
+++ gnuradio-runtime/lib/constants.cc.in
@@ -27,6 +27,7 @@ const std::string prefix()
     if (prefix != NULL)
         return prefix;
 
+    return "@PREFIX@";
     path prefix_rel_lib = "@prefix_relative_to_lib@";
     path gr_runtime_lib_path = boost::dll::this_line_location().string();
     // Canonize before decomposing path so result is reliable and without symlinks