--- ruby-3.4.6.old/ruby.c
+++ ruby-3.4.6/ruby.c
@@ -1459,8 +1459,6 @@
     else if (strcmp("jit", s) == 0) {
 #if USE_YJIT || USE_RJIT
         FEATURE_SET(opt->features, FEATURE_BIT(jit));
-#else
-        rb_warn("Ruby was built without JIT support");
 #endif
     }
     else if (is_option_with_optarg("rjit", '-', true, false, false)) {
@@ -1468,17 +1466,12 @@
         extern void rb_rjit_setup_options(const char *s, struct rb_rjit_options *rjit_opt);
         FEATURE_SET(opt->features, FEATURE_BIT(rjit));
         rb_rjit_setup_options(s, &opt->rjit);
-#else
-        rb_warn("RJIT support is disabled.");
 #endif
     }
     else if (is_option_with_optarg("yjit", '-', true, false, false)) {
 #if USE_YJIT
         FEATURE_SET(opt->features, FEATURE_BIT(yjit));
         setup_yjit_options(s);
-#else
-        rb_warn("Ruby was built without YJIT support."
-                " You may need to install rustc to build Ruby with YJIT.");
 #endif
     }
     else if (strcmp("yydebug", s) == 0) {