Prepare commandline parameter for upcoming partial support for $dynamic_X$

include/types.h

@@ -638,6 +638,7 @@ typedef enum user_options_defaults
   #endif
   DEBUG_MODE               = 0,
   DEPRECATED_CHECK         = true,
+  DYNAMIC_X                = false,
   FORCE                    = false,
   HWMON                    = true,
   #if defined (__APPLE__)
@@ -757,6 +758,7 @@ typedef enum user_options_map
   IDX_DEBUG_FILE                = 0xff12,
   IDX_DEBUG_MODE                = 0xff13,
   IDX_DEPRECATED_CHECK_DISABLE  = 0xff14,
+  IDX_DYNAMIC_X                 = 0xff55,
   IDX_ENCODING_FROM             = 0xff15,
   IDX_ENCODING_TO               = 0xff16,
   IDX_HASH_INFO                 = 0xff17,

src/user_options.c

@@ -54,6 +54,7 @@ static const struct option long_options[] =
   {"debug-file",                required_argument, NULL, IDX_DEBUG_FILE},
   {"debug-mode",                required_argument, NULL, IDX_DEBUG_MODE},
   {"deprecated-check-disable",  no_argument,       NULL, IDX_DEPRECATED_CHECK_DISABLE},
+  {"dynamic-x",                 no_argument,       NULL, IDX_DYNAMIC_X},
   {"encoding-from",             required_argument, NULL, IDX_ENCODING_FROM},
   {"encoding-to",               required_argument, NULL, IDX_ENCODING_TO},
   {"example-hashes",            no_argument,       NULL, IDX_HASH_INFO}, // alias of hash-info