diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 5b12f564f1b..2a957675112 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,33 @@
 2019-10-01  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/17_intro/using_namespace_std_tr1_neg.cc: Skip test for
+	parallel mode.
+	* testsuite/20_util/hash/84998.cc: Likewise.
+	* testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/list/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/map/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/multimap/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/multiset/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/set/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
+	Likewise.
+	* testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc:
+	Likewise.
+	* testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
+	Likewise.
+	* testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: Likewise.
+	* testsuite/25_algorithms/binary_search/partitioned.cc: Likewise.
+	* testsuite/25_algorithms/copy/86658.cc: Likewise.
+	* testsuite/25_algorithms/equal_range/partitioned.cc: Likewise.
+	* testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise.
+	* testsuite/25_algorithms/lower_bound/partitioned.cc: Likewise.
+	* testsuite/25_algorithms/upper_bound/partitioned.cc: Likewise.
+
 	* include/parallel/algo.h: Replace non-reserved names.
 	* include/parallel/multiway_merge.h: Likewise.
 	* include/parallel/multiway_mergesort.h: Likewise.
diff --git a/libstdc++-v3/testsuite/17_intro/using_namespace_std_tr1_neg.cc b/libstdc++-v3/testsuite/17_intro/using_namespace_std_tr1_neg.cc
index 31242760179..bdc41507424 100644
--- a/libstdc++-v3/testsuite/17_intro/using_namespace_std_tr1_neg.cc
+++ b/libstdc++-v3/testsuite/17_intro/using_namespace_std_tr1_neg.cc
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // NB: parallel-mode uses TR1 bits...
-#undef _GLIBCXX_PARALLEL
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <array>
diff --git a/libstdc++-v3/testsuite/20_util/hash/84998.cc b/libstdc++-v3/testsuite/20_util/hash/84998.cc
index 1cf57e9073c..b00df223415 100644
--- a/libstdc++-v3/testsuite/20_util/hash/84998.cc
+++ b/libstdc++-v3/testsuite/20_util/hash/84998.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 // PR libstdc++/84998
 
diff --git a/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs_debug.cc
index ac96584a6e0..9bee219b58f 100644
--- a/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/deque/types/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/deque>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs_debug.cc
index 7df01d530f8..66138ba830c 100644
--- a/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/forward_list/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/forward_list>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs_debug.cc
index d59f8c41d1d..b1bb271aa1c 100644
--- a/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/list/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/list>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs_debug.cc
index d06673027e5..c959b6957ed 100644
--- a/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/map/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/map>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs_debug.cc
index 641fe26fdbe..062e9b22c6d 100644
--- a/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/multimap/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/map>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs_debug.cc
index 2fa4dda70c6..5ac8f986162 100644
--- a/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/multiset/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/set>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs_debug.cc
index 785986c0673..b705108c5e9 100644
--- a/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/set/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/set>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc
index 8b3237ed4f6..73c7f338265 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/unordered_map>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc
index 50fcf10f565..2328a3e5223 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/unordered_map>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc
index 8a77d519adc..a41c23b06e0 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/unordered_set>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc
index 93546dbb476..c6422dbbfa7 100644
--- a/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/unordered_set>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/23_containers/vector/cons/destructible_debug_neg.cc b/libstdc++-v3/testsuite/23_containers/vector/cons/destructible_debug_neg.cc
index 061bb414f47..daeab2fe26b 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/cons/destructible_debug_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/cons/destructible_debug_neg.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <vector>
 
diff --git a/libstdc++-v3/testsuite/23_containers/vector/types/pmr_typedefs_debug.cc b/libstdc++-v3/testsuite/23_containers/vector/types/pmr_typedefs_debug.cc
index 62fb5b674cc..1db6897a9e3 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/types/pmr_typedefs_debug.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/types/pmr_typedefs_debug.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-std=gnu++17 -D_GLIBCXX_DEBUG" }
 // { dg-do compile { target c++17 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <debug/vector>
 static_assert(std::is_same_v<
diff --git a/libstdc++-v3/testsuite/25_algorithms/binary_search/partitioned.cc b/libstdc++-v3/testsuite/25_algorithms/binary_search/partitioned.cc
index 43d260ed1c3..14a437c308c 100644
--- a/libstdc++-v3/testsuite/25_algorithms/binary_search/partitioned.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/binary_search/partitioned.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do run { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <functional>
diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/86658.cc b/libstdc++-v3/testsuite/25_algorithms/copy/86658.cc
index 7092c8b0ce1..410985cb5e0 100644
--- a/libstdc++-v3/testsuite/25_algorithms/copy/86658.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/86658.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do run }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <vector>
diff --git a/libstdc++-v3/testsuite/25_algorithms/equal_range/partitioned.cc b/libstdc++-v3/testsuite/25_algorithms/equal_range/partitioned.cc
index a80fe66beff..353fde53cce 100644
--- a/libstdc++-v3/testsuite/25_algorithms/equal_range/partitioned.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/equal_range/partitioned.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do run { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <functional>
diff --git a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
index 9c8c2938a0d..05af7e23b1b 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do link { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/lower_bound/partitioned.cc b/libstdc++-v3/testsuite/25_algorithms/lower_bound/partitioned.cc
index e48facb7173..d53da3c199b 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lower_bound/partitioned.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/partitioned.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do run { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <functional>
diff --git a/libstdc++-v3/testsuite/25_algorithms/upper_bound/partitioned.cc b/libstdc++-v3/testsuite/25_algorithms/upper_bound/partitioned.cc
index 7dd43b6074d..7ad959297a9 100644
--- a/libstdc++-v3/testsuite/25_algorithms/upper_bound/partitioned.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/upper_bound/partitioned.cc
@@ -17,6 +17,7 @@
 
 // { dg-options "-D_GLIBCXX_DEBUG" }
 // { dg-do run { target c++11 } }
+// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PARALLEL" } }
 
 #include <algorithm>
 #include <functional>