From 8c86f0ef98ffa6b7a54e55aa54e44afed464a94e Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 2 Feb 2006 07:33:13 +0000
Subject: [PATCH] * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
 '#include <string>' works.

---
 ChangeLog | 3 +++
 m4/cxx.m4 | 1 +
 2 files changed, 4 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 880b95ed..f47e6844 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,9 @@
 	Work around portability problems summarized by Nelson H. F. Beebe in
 	<http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
 
+	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+	that '#include <string>' works.
+
 	* data/lalr1.cc (yytranslate_): No longer inline, to work around a
 	porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
 	"warning: sorry: semantics of inline function static data `const
diff --git a/m4/cxx.m4 b/m4/cxx.m4
index 695476d1..a8eff8ee 100644
--- a/m4/cxx.m4
+++ b/m4/cxx.m4
@@ -29,6 +29,7 @@ AC_DEFUN([BISON_TEST_FOR_WORKING_CXX_COMPILER],
       [AC_LANG_PROGRAM(
 	 [#include <cstdlib>
 	  #include <iostream>
+	  #include <string>
 	  using namespace std;],
          [std::cerr << "";
           cout << "";])],
-- 
2.45.2