From 54850e4657ab993a045cb75b63bda551ccbed1f4 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 18 Nov 2015 00:25:29 +0000
Subject: configure.in: additional flags

* configure.in: add additional flag variable descriptions, which
  are appended to common flags, e.g., CFLAGS, CPPFLAGS, etc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52626 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.in | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index eae8b06a34..06e07a18d1 100644
--- a/configure.in
+++ b/configure.in
@@ -11,6 +11,10 @@ AC_DEFUN([RUBY_PREREQ_AC],
 
 AC_DISABLE_OPTION_CHECKING
 
+AC_ARG_VAR([cflags], [additional CFLAGS])
+AC_ARG_VAR([cppflags], [additional CPPFLAGS])
+AC_ARG_VAR([cxxflags], [additional CXXFLAGS])
+
 AC_DEFUN([RUBY_RM_RECURSIVE], [
 m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]), [2.70]), [-1], [
 # suppress error messages, rm: cannot remove 'conftest.dSYM', from
-- 
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