diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 766e9f160802..1f83eaffcddd 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2015-12-24  Jason Merrill  <jason@redhat.com>
+
+	* testsuite/ext/bitmap_allocator/check_deallocate_null.cc
+	* testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
+	Correct use of __GXX_WEAK__ macro.
+
 2015-12-22  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/59768
diff --git a/libstdc++-v3/testsuite/ext/bitmap_allocator/check_allocate_max_size.cc b/libstdc++-v3/testsuite/ext/bitmap_allocator/check_allocate_max_size.cc
index 70b025d6c8ac..8f2bcf13f3cf 100644
--- a/libstdc++-v3/testsuite/ext/bitmap_allocator/check_allocate_max_size.cc
+++ b/libstdc++-v3/testsuite/ext/bitmap_allocator/check_allocate_max_size.cc
@@ -30,7 +30,7 @@ int main()
   return 0;
 }
 
-#if !__GXX_WEAK
+#if !__GXX_WEAK__
 // Explicitly instantiatiate for systems without weak symbols.
 template class __gnu_cxx::bitmap_allocator<value_type>;
 #endif
diff --git a/libstdc++-v3/testsuite/ext/bitmap_allocator/check_deallocate_null.cc b/libstdc++-v3/testsuite/ext/bitmap_allocator/check_deallocate_null.cc
index 4fb6689ea6a5..5850508c5a82 100644
--- a/libstdc++-v3/testsuite/ext/bitmap_allocator/check_deallocate_null.cc
+++ b/libstdc++-v3/testsuite/ext/bitmap_allocator/check_deallocate_null.cc
@@ -30,7 +30,7 @@ int main()
   return 0;
 }
 
-#if !__GXX_WEAK
+#if !__GXX_WEAK__
 // Explicitly instantiatiate for systems without weak symbols.
 template class __gnu_cxx::bitmap_allocator<value_type>;
 #endif