diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 184c18ada04010b3ca667b38f301e1a837ce2896..ad7f2e3857aff7807840cc060239edd90d88d10f 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2007-12-16  Jonathan Wakely  <jwakely-gcc@gmail.com>
+
+	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
+	required dg-option for cygwin and darwin targets.
+	* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
+
 2007-12-15  Jonathan Wakely  <jwakely-gcc@gmail.com>
 
 	* include/tr1_impl/boost_shared_ptr.h: Add support for allocators,
diff --git a/libstdc++-v3/testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc b/libstdc++-v3/testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc
index c806a0e1293a8e222c69c890457713bbade7c336..31e31763ce79dbe246b2da48d77bb17f42e3810b 100644
--- a/libstdc++-v3/testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc
+++ b/libstdc++-v3/testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc
@@ -21,6 +21,7 @@
 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
 // { dg-options "-pthread -std=gnu++0x" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
 // { dg-options "-pthreads -std=gnu++0x" { target *-*-solaris* } }
+// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
 
 #include <memory>
 #include <random>
diff --git a/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc b/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
index 1515f65b443a241e5e51ac9283fd14590f5a4bc9..503498bd5f68a76df710321339c3995e6f81fa5f 100644
--- a/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
+++ b/libstdc++-v3/testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc
@@ -21,6 +21,7 @@
 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
 // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
 // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }
+// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
 
 #include <memory>
 #include <random>