From 6829fc637615386a62007fa35daafe2ffc557b75 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sun, 4 Sep 2016 21:17:09 +0200
Subject: Check for the need to link with atomic.

---
 configure.ac | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0b23204..d8d2c8d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -467,25 +467,25 @@ dnl Check for the rt library
 dnl ======================
 AC_HAVE_LIBRARY([rt],[],[])
 
-#dnl ======================
-#dnl Check for the atomic library
-#dnl ======================
-#AC_LINK_IFELSE(
-#    [AC_LANG_SOURCE[
-#      #include <atomic>
-#      int main() {
-#        struct Test { int val; };
-#        std::atomic<Test> s;
-#        s.is_lock_free();
-#      }
-#    ]],
-#    [needs_libatomic=yes],
-#    [needs_libatomic=no])
-#
-#if test x$needs_libatomic = xno; then
-#  AC_HAVE_LIBRARY([atomic],[],[AC_MSG_ERROR(
-#                  [Please install the GNU Atomic library])])
-#fi
+dnl ======================
+dnl Check for the atomic library
+dnl ======================
+AC_LINK_IFELSE(
+    [AC_LANG_SOURCE[
+      #include <atomic>
+      int main() {
+        struct Test { int val; };
+        std::atomic<Test> s;
+        s.is_lock_free();
+      }
+    ]],
+    [needs_libatomic=yes],
+    [needs_libatomic=no])
+
+if test x$needs_libatomic = xno; then
+  AC_HAVE_LIBRARY([atomic],[],[AC_MSG_ERROR(
+                  [Please install the GNU Atomic library])])
+fi
 
 dnl ======================
 dnl Check for the pthread library
-- 
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