From c3ef1871289ba0fe59e79654e7438ed87a0161e0 Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 13 Dec 2016 11:53:03 +0000
Subject: [PATCH] Add missing header in Filesystem TS configure tests

Backport from mainline
2016-10-26  Uros Bizjak  <ubizjak@gmail.com>

	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Include <limits.h>
	for PATH_MAX in realpath test.
	* configure: Regenerate.

From-SVN: r243604
---
 libstdc++-v3/ChangeLog    | 7 +++++++
 libstdc++-v3/acinclude.m4 | 1 +
 libstdc++-v3/configure    | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index abaaf31e18a5..8dbed86fd647 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,12 @@
 2016-12-13  Jonathan Wakely  <jwakely@redhat.com>
 
+	Backport from mainline
+	2016-10-26  Uros Bizjak  <ubizjak@gmail.com>
+
+	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Include <limits.h>
+	for PATH_MAX in realpath test.
+	* configure: Regenerate.
+
 	Backport from mainline
 	2016-05-25  Jonathan Wakely  <jwakely@redhat.com>
 
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index f7ecf9b7cbae..18b7b6638ecb 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -4069,6 +4069,7 @@ dnl
   AC_CACHE_VAL(glibcxx_cv_realpath, [dnl
     GCC_TRY_COMPILE_OR_LINK(
       [
+       #include <limits.h>
        #include <stdlib.h>
        #include <unistd.h>
       ],
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 24eb78ea0b00..a51dfe6eb13d 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -79131,6 +79131,7 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+       #include <limits.h>
        #include <stdlib.h>
        #include <unistd.h>
 
@@ -79163,6 +79164,7 @@ fi
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+       #include <limits.h>
        #include <stdlib.h>
        #include <unistd.h>
 
-- 
2.47.2