From ccda26efe7c6acf7edd1262dd2826b8c7008ff75 Mon Sep 17 00:00:00 2001
From: Yuta Saito <kateinoigakukun@gmail.com>
Date: Thu, 28 Oct 2021 15:48:45 +0900
Subject: Split thread-model config into another ac file

This is a first step to allow the thread-model implementation to be
switched by configure's option
---
 tool/m4/ruby_thread.m4 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 tool/m4/ruby_thread.m4

(limited to 'tool/m4')

diff --git a/tool/m4/ruby_thread.m4 b/tool/m4/ruby_thread.m4
new file mode 100644
index 0000000000..92d80421f1
--- /dev/null
+++ b/tool/m4/ruby_thread.m4
@@ -0,0 +1,19 @@
+dnl -*- Autoconf -*-
+AC_DEFUN([RUBY_THREAD], [
+AS_CASE(["$target_os"],
+    [mingw*], [
+        THREAD_MODEL=win32
+    ],
+    [
+        AS_IF([test "$rb_with_pthread" = "yes"], [
+            THREAD_MODEL=pthread
+        ])
+    ]
+)
+
+AS_CASE(["$THREAD_MODEL"],
+[pthread], [AC_CHECK_HEADERS(pthread.h)],
+[win32],   [],
+[""],      [AC_MSG_ERROR(thread model is missing)],
+           [AC_MSG_ERROR(unknown thread model $THREAD_MODEL)])
+])dnl
-- 
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