diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 144126aca9d..f18c7328f1c 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2010-11-24  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* testsuite/30_threads/future/cons/constexpr.cc: Add dg-require*
+	directives.
+	* testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
+
 2010-11-23  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* include/std/chrono: Constexpr markup for is_monotonic.
diff --git a/libstdc++-v3/testsuite/30_threads/future/cons/constexpr.cc b/libstdc++-v3/testsuite/30_threads/future/cons/constexpr.cc
index 0045f7ca7ae..a56d5852424 100644
--- a/libstdc++-v3/testsuite/30_threads/future/cons/constexpr.cc
+++ b/libstdc++-v3/testsuite/30_threads/future/cons/constexpr.cc
@@ -1,5 +1,8 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x -fno-inline -save-temps" }
+// { dg-require-cstdint "" }
+// { dg-require-gthreads "" }
+// { dg-require-atomic-builtins "" }
 // { dg-final { scan-assembler-not "_ZNSt6futureIvEC2Ev" } }
 // { dg-final { scan-assembler-not "_ZNSt6futureIiEC2Ev" } }
 
diff --git a/libstdc++-v3/testsuite/30_threads/shared_future/cons/constexpr.cc b/libstdc++-v3/testsuite/30_threads/shared_future/cons/constexpr.cc
index 6c661f21d06..159077bc820 100644
--- a/libstdc++-v3/testsuite/30_threads/shared_future/cons/constexpr.cc
+++ b/libstdc++-v3/testsuite/30_threads/shared_future/cons/constexpr.cc
@@ -1,5 +1,8 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x -fno-inline -save-temps" }
+// { dg-require-cstdint "" }
+// { dg-require-gthreads "" }
+// { dg-require-atomic-builtins "" }
 // { dg-final { scan-assembler-not "_ZNSt13shared_futureIvEC2Ev" } }
 // { dg-final { scan-assembler-not "_ZNSt13shared_futureIiEC2Ev" } }