From 2cb3efffcf4e000c35d5b43574bfdecdc8a12e37 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 28 Mar 2022 16:56:15 +0900
Subject: Extract RUBY_REQUIRE_FUNCS

---
 tool/m4/ruby_require_funcs.m4 | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tool/m4/ruby_require_funcs.m4

(limited to 'tool/m4')

diff --git a/tool/m4/ruby_require_funcs.m4 b/tool/m4/ruby_require_funcs.m4
new file mode 100644
index 0000000000..2daa350e68
--- /dev/null
+++ b/tool/m4/ruby_require_funcs.m4
@@ -0,0 +1,13 @@
+dnl -*- Autoconf -*-
+dnl RUBY_REQUIRE_FUNC [func] [included]
+AC_DEFUN([RUBY_REQUIRE_FUNC], [
+# RUBY_REQUIRE_FUNC([$1], [$2])
+    AC_CHECK_FUNCS([$1])
+    AS_IF([test "$ac_cv_func_[]AS_TR_SH($1)" = yes], [],
+          [AC_MSG_ERROR($1[() must be supported])])
+])dnl
+dnl
+dnl RUBY_REQUIRE_FUNCS [funcs] [included]
+AC_DEFUN([RUBY_REQUIRE_FUNCS], [dnl
+    m4_map_args_w([$1], [RUBY_REQUIRE_FUNC(], [), [$2]])dnl
+])dnl
-- 
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