Switch to std::filesystem

Change-Id: Idd88815c8971a1dd6a592ac9d3f46d5925afd21b
diff --git a/wscript b/wscript
index fbadf9f..be9030c 100644
--- a/wscript
+++ b/wscript
@@ -72,7 +72,7 @@
     conf.check_cfg(package='libndn-cxx', args=['libndn-cxx >= 0.9.0', '--cflags', '--libs'],
                    uselib_store='NDN_CXX', pkg_config_path=pkg_config_path)
 
-    conf.check_boost(lib='filesystem', mt=True)
+    conf.check_boost()
     if conf.env.BOOST_VERSION_NUMBER < 107100:
         conf.fatal('The minimum supported version of Boost is 1.71.0.\n'
                    'Please upgrade your distribution or manually install a newer version of Boost.\n'