From 9e6e39c3512f7a962c44dc3729c98a0f8be90341 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@ruby-lang.org>
Date: Wed, 8 Apr 2020 13:28:13 +0900
Subject: Merge pull request #2991 from shyouhei/ruby.h

Split ruby.h
---
 tool/m4/ruby_try_cxxflags.m4 | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 tool/m4/ruby_try_cxxflags.m4

(limited to 'tool/m4')

diff --git a/tool/m4/ruby_try_cxxflags.m4 b/tool/m4/ruby_try_cxxflags.m4
new file mode 100644
index 0000000000..5f84140670
--- /dev/null
+++ b/tool/m4/ruby_try_cxxflags.m4
@@ -0,0 +1,17 @@
+# -*- Autoconf -*-
+AC_DEFUN([RUBY_TRY_CXXFLAGS], [
+    save_CXXFLAGS="$CXXFLAGS"
+    CXXFLAGS="[$]CXXFLAGS $1"
+    AC_MSG_CHECKING([whether ]$1[ is accepted as CXXFLAGS])
+    RUBY_WERROR_FLAG([
+    AC_LANG_PUSH([C++])
+    AC_TRY_LINK([$4], [$5],
+	[$2
+	AC_MSG_RESULT(yes)],
+	[$3
+	AC_MSG_RESULT(no)])
+    ])
+    AC_LANG_POP([C++])
+    CXXFLAGS="$save_CXXFLAGS"
+    save_CXXFLAGS=
+])dnl
-- 
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