set up mjit.on at initialization

* ruby.c (cmdline_options_init): set up mjit.on flag by
  MJIT_FORCE_ENABLE in the initialization function.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63822 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ruby.c

@@ -179,6 +179,9 @@ cmdline_options_init(ruby_cmdline_options_t *opt)
     opt->ext.enc.index = -1;
     opt->intern.enc.index = -1;
     opt->features = DEFAULT_FEATURES;
+#ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
+    opt->mjit.on = MJIT_FORCE_ENABLE;
+#endif
     return opt;
 }
 
@@ -1534,10 +1537,6 @@ process_options(int argc, char **argv, ruby_cmdline_options_t *opt)
     const struct rb_block *base_block;
     unsigned int dump = opt->dump & dump_exit_bits;
 
-#ifdef MJIT_FORCE_ENABLE /* to use with: ./configure cppflags="-DMJIT_FORCE_ENABLE" */
-    opt->mjit.on = 1;
-#endif
-
     if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
 	const char *const progname =
 	    (argc > 0 && argv && argv[0] ? argv[0] :