From d8790ecd04a31e377967fe9cbdfb815cae16e81a Mon Sep 17 00:00:00 2001
From: nick evans <nicholas.evans@gmail.com>
Date: Sun, 5 Jun 2022 13:33:49 -0400
Subject: Export RbConfig::CONFIG["COROUTINE_TYPE"]

THREAD_MODEL is exported already, so this matches that.  Exporting this
is simpler than inspecting configure_args and arch and matching that up
with a specific configure.ac.

Fix GH-5976
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index bddb5a4f40..e862bf9397 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4007,6 +4007,7 @@ AC_SUBST(EXPORT_PREFIX)
 AC_SUBST(SYMBOL_PREFIX)
 AC_SUBST(MINIOBJS)
 AC_SUBST(THREAD_MODEL)
+AC_SUBST(COROUTINE_TYPE, ${coroutine_type})
 AC_SUBST(PLATFORM_DIR)
 
 firstmf=`echo $FIRSTMAKEFILE | sed 's/:.*//'`
-- 
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