Index: config_f.h
--- config_f.h.orig	2019-12-04 18:51:54.000000000 +0100
+++ config_f.h	2020-10-03 09:52:56.577888000 +0200
@@ -54,9 +54,9 @@
  *		Allows proper function in multibyte encodings like UTF-8
  */
 #if defined (SHORT_STRINGS) && defined (NLS) && !defined (WINNT_NATIVE) && !defined(_OSD_POSIX) && SIZEOF_WCHAR_T > 1
-# define WIDE_STRINGS
+# undef WIDE_STRINGS
 # if SIZEOF_WCHAR_T < 4
-#  define UTF16_STRINGS
+#  undef UTF16_STRINGS
 # endif
 #endif