https://git.ruby-lang.org/ruby.git/commit/?id=bb2228817f

From bb2228817f0bcf2d5400d37ed350f6351f5b3376 Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@g...>
Date: Tue, 14 Dec 2021 19:12:02 +0900
Subject: [wasm] configure.ac: disable mjit on wasi by default

---
 configure.ac | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index e20e133feb6..1968cce907c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3732,12 +3732,15 @@ AC_SUBST(INSTALLDOC) https://github.com/ruby/ruby/blob/trunk/configure.ac#L3732
 
 AC_ARG_ENABLE(jit-support,
         AS_HELP_STRING([--disable-jit-support], [disable JIT features]),
-        [MJIT_SUPPORT=$enableval
-         AS_IF([test x"$enable_jit_support" = "xyes"],
-                 [AC_DEFINE(USE_MJIT, 1)],
-                 [AC_DEFINE(USE_MJIT, 0)])],
-        [MJIT_SUPPORT=yes
-         AC_DEFINE(USE_MJIT, 1)])
+        [MJIT_SUPPORT=$enableval],
+        # Enable mjit by default except for WASI
+        [AS_IF([test x"$target_os" != "xwasi"],
+		[MJIT_SUPPORT=yes],
+		[MJIT_SUPPORT=no ])])
+
+AS_IF([test x"$MJIT_SUPPORT" = "xyes"],
+	[AC_DEFINE(USE_MJIT, 1)],
+	[AC_DEFINE(USE_MJIT, 0)])
 
 AC_SUBST(MJIT_SUPPORT)
 
-- 
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