From 3c086f8decdc190602fb66cfec8f3cff16328142 Mon Sep 17 00:00:00 2001
From: Florian Weimer <fweimer@redhat.com>
Date: Fri, 6 Sep 2019 12:27:36 +0200
Subject: Fix GCC_LINUX_FUTEX to work with C99 compilers

Without this change, libstdc++ is built without futex symbols if GCC
rejects implicit function declarations by default.

From-SVN: r275454
---
 libitm/ChangeLog | 4 ++++
 libitm/configure | 2 ++
 2 files changed, 6 insertions(+)

(limited to 'libitm')

diff --git a/libitm/ChangeLog b/libitm/ChangeLog
index 76d6def09d6..567c1d09d47 100644
--- a/libitm/ChangeLog
+++ b/libitm/ChangeLog
@@ -1,3 +1,7 @@
+2019-09-06  Florian Weimer  <fweimer@redhat.com>
+
+	* configure: Regenerate.
+
 2019-09-03  Chung-Lin Tang  <cltang@codesourcery.com>
 
 	PR other/79543
diff --git a/libitm/configure b/libitm/configure
index bdc5148c9f0..c466ae05aa5 100644
--- a/libitm/configure
+++ b/libitm/configure
@@ -16481,6 +16481,7 @@ case "$target" in
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/syscall.h>
+	   #include <unistd.h>
 	   int lk;
 int
 main ()
@@ -16533,6 +16534,7 @@ rm -f core conftest.err conftest.$ac_objext \
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/syscall.h>
+	   #include <unistd.h>
 	   int lk;
 int
 main ()
-- 
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