diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 285ea6b7dca..028f269e6f4 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,74 @@
 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
 
+	* testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
+	from namespace std.
+	* testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
+	* testsuite/20_util/duration/arithmetic/1.cc: Likewise.
+	* testsuite/20_util/duration/arithmetic/2.cc: Likewise.
+	* testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
+	* testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
+	* testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
+	* testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
+	* testsuite/20_util/duration/cons/1.cc: Likewise.
+	* testsuite/20_util/duration/cons/1_neg.cc: Likewise.
+	* testsuite/20_util/duration/cons/2.cc: Likewise.
+	* testsuite/20_util/duration/cons/54025.cc: Likewise.
+	* testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
+	* testsuite/20_util/duration/requirements/explicit_instantiation/
+	explicit_instantiation.cc: Likewise.
+	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
+	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
+	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
+	* testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
+	* testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
+	* testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
+	* testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
+	* testsuite/20_util/ratio/cons/cons1.cc: Likewise.
+	* testsuite/20_util/ratio/operations/45866.cc: Likewise.
+	* testsuite/20_util/ratio/operations/47913.cc: Likewise.
+	* testsuite/20_util/ratio/operations/53840.cc: Likewise.
+	* testsuite/20_util/ratio/operations/ops1.cc: Likewise.
+	* testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
+	* testsuite/20_util/system_clock/1.cc: Likewise.
+	* testsuite/20_util/time_point/1.cc: Likewise.
+	* testsuite/20_util/time_point/2.cc: Likewise.
+	* testsuite/20_util/time_point/3.cc: Likewise.
+	* testsuite/20_util/time_point/requirements/explicit_instantiation/
+	explicit_instantiation.cc: Likewise.
+	* testsuite/21_strings/basic_string/requirements/
+	explicit_instantiation/char16_t/1.cc: Likewise.
+	* testsuite/21_strings/basic_string/requirements/
+	explicit_instantiation/char32_t/1.cc: Likewise.
+	* testsuite/21_strings/basic_string_view/requirements/
+	explicit_instantiation/char16_t/1.cc: Likewise.
+	* testsuite/21_strings/basic_string_view/requirements/
+	explicit_instantiation/char32_t/1.cc: Likewise.
+	* testsuite/21_strings/char_traits/requirements/
+	explicit_instantiation/char16_t/1.cc: Likewise.
+	* testsuite/21_strings/char_traits/requirements/
+	explicit_instantiation/char32_t/1.cc: Likewise.
+	* testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
+	* testsuite/22_locale/codecvt/char16_t.cc: Likewise.
+	* testsuite/22_locale/codecvt/char32_t.cc: Likewise.
+	* testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
+	Likewise.
+	* testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
+	Likewise.
+	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
+	Likewise.
+	* testsuite/22_locale/codecvt/utf8.cc: Likewise.
+	* testsuite/23_containers/vector/bool/72847.cc: Likewise.
+	* testsuite/23_containers/vector/debug/multithreaded_swap.cc:
+	Likewise.
+	* testsuite/experimental/string_view/requirements/
+	explicit_instantiation/char16_t/1.cc: Likewise.
+	* testsuite/experimental/string_view/requirements/
+	explicit_instantiation/char32_t/1.cc: Likewise.
+	* testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
+	1.cc: Likewise.
+	* testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
+	1.cc: Likewise.
+
 	* include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 	(random_condition, throw_value_random, throw_allocator_random)
 	(std::hash<throw_value_random>): Do not define when <tr1/random> is
diff --git a/libstdc++-v3/testsuite/18_support/numeric_limits/char16_32_t.cc b/libstdc++-v3/testsuite/18_support/numeric_limits/char16_32_t.cc
index 92c8639adf7..4f0eac37475 100644
--- a/libstdc++-v3/testsuite/18_support/numeric_limits/char16_32_t.cc
+++ b/libstdc++-v3/testsuite/18_support/numeric_limits/char16_32_t.cc
@@ -26,7 +26,7 @@
 #include <cstdint>
 #include <testsuite_hooks.h>
 
-// Test specializations for char16_t and char32_t, in C++0x.
+// Test specializations for char16_t and char32_t, in C++11.
 template<typename T, typename R>
   void
   do_test()
@@ -68,8 +68,8 @@ template<typename T, typename R>
 
 int main()
 {
-  do_test<char16_t, uint_least16_t>();
-  do_test<char32_t, uint_least32_t>();
+  do_test<char16_t, std::uint_least16_t>();
+  do_test<char32_t, std::uint_least32_t>();
 
   return 0;
 }
diff --git a/libstdc++-v3/testsuite/20_util/align/2.cc b/libstdc++-v3/testsuite/20_util/align/2.cc
index bb4cc56adf6..c7ff67e0454 100644
--- a/libstdc++-v3/testsuite/20_util/align/2.cc
+++ b/libstdc++-v3/testsuite/20_util/align/2.cc
@@ -19,8 +19,6 @@
 
 // C++11 [ptr.align] (20.6.5): std::align
 
-// { dg-require-cstdint "" }
-
 #include <memory>
 #include <testsuite_hooks.h>
 
diff --git a/libstdc++-v3/testsuite/20_util/duration/arithmetic/1.cc b/libstdc++-v3/testsuite/20_util/duration/arithmetic/1.cc
index 79e86f5d796..dc950f01105 100644
--- a/libstdc++-v3/testsuite/20_util/duration/arithmetic/1.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/arithmetic/1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/arithmetic/2.cc b/libstdc++-v3/testsuite/20_util/duration/arithmetic/2.cc
index 39143ec376d..0758df68dfa 100644
--- a/libstdc++-v3/testsuite/20_util/duration/arithmetic/2.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/arithmetic/2.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr2020.cc b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr2020.cc
index ea37575fac6..7fa01de4f69 100644
--- a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr2020.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr2020.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2011-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-1.cc b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-1.cc
index ff990127632..88e1aae203d 100644
--- a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-1.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2009-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-2.cc b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-2.cc
index 739b35afdf6..25099e08a4c 100644
--- a/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-2.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/arithmetic/dr934-2.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2009-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/comparison_operators/1.cc b/libstdc++-v3/testsuite/20_util/duration/comparison_operators/1.cc
index 875834e6d5b..e90217f7e7a 100644
--- a/libstdc++-v3/testsuite/20_util/duration/comparison_operators/1.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/comparison_operators/1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/cons/1.cc b/libstdc++-v3/testsuite/20_util/duration/cons/1.cc
index 171fcb67469..9ad0726d445 100644
--- a/libstdc++-v3/testsuite/20_util/duration/cons/1.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/cons/1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/cons/1_neg.cc b/libstdc++-v3/testsuite/20_util/duration/cons/1_neg.cc
index 7c14136886a..34974c03c30 100644
--- a/libstdc++-v3/testsuite/20_util/duration/cons/1_neg.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/cons/1_neg.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/cons/2.cc b/libstdc++-v3/testsuite/20_util/duration/cons/2.cc
index 274293c5074..3f48f25f101 100644
--- a/libstdc++-v3/testsuite/20_util/duration/cons/2.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/cons/2.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/cons/54025.cc b/libstdc++-v3/testsuite/20_util/duration/cons/54025.cc
index fe7f622685b..8db4d31efca 100644
--- a/libstdc++-v3/testsuite/20_util/duration/cons/54025.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/cons/54025.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2012-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc b/libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc
index 4b557ab6311..2cff3a404f4 100644
--- a/libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2009-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/requirements/explicit_instantiation/explicit_instantiation.cc b/libstdc++-v3/testsuite/20_util/duration/requirements/explicit_instantiation/explicit_instantiation.cc
index f113662b771..5307f454c8c 100644
--- a/libstdc++-v3/testsuite/20_util/duration/requirements/explicit_instantiation/explicit_instantiation.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/requirements/explicit_instantiation/explicit_instantiation.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg1.cc b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg1.cc
index 37949434c3c..bb86e475bef 100644
--- a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg1.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 // 2008-07-31 Chris Fairles <chris.fairles@gmail.com>
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg2.cc b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg2.cc
index ecd3c81530b..3c39517c7e2 100644
--- a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg2.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg2.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 // 2008-07-31 Chris Fairles <chris.fairles@gmail.com>
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg3.cc b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg3.cc
index d2c16675096..0c92f00a06d 100644
--- a/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg3.cc
+++ b/libstdc++-v3/testsuite/20_util/duration/requirements/typedefs_neg3.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 // 2008-07-31 Chris Fairles <chris.fairles@gmail.com>
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-4.cc b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-4.cc
index 8135d9cddd0..d62589b39a4 100644
--- a/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-4.cc
+++ b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-4.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2014-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp1.cc b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp1.cc
index 7c838661a98..c33698ea358 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp1.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc
index 0b009b39e2b..dcbe4ee700d 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp3.cc b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp3.cc
index e5e868bc026..b702eb4d06a 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp3.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp3.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // 2011-02-28  Paolo Carlini  <paolo.carlini@oracle.com>
 
diff --git a/libstdc++-v3/testsuite/20_util/ratio/cons/cons1.cc b/libstdc++-v3/testsuite/20_util/ratio/cons/cons1.cc
index 4913189aedc..74d898c9371 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/cons/cons1.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/cons/cons1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // 2008-07-03 Chris Fairles <chris.fairles@gmail.com>
 
diff --git a/libstdc++-v3/testsuite/20_util/ratio/operations/45866.cc b/libstdc++-v3/testsuite/20_util/ratio/operations/45866.cc
index cdbf5f37c30..08cebea409c 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/operations/45866.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/operations/45866.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // 2010-10-18  Paolo Carlini  <paolo.carlini@oracle.com>
 
diff --git a/libstdc++-v3/testsuite/20_util/ratio/operations/47913.cc b/libstdc++-v3/testsuite/20_util/ratio/operations/47913.cc
index 6e4d1106fdb..d9f971c61b3 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/operations/47913.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/operations/47913.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2011-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/ratio/operations/53840.cc b/libstdc++-v3/testsuite/20_util/ratio/operations/53840.cc
index c4ad05ea711..ee0a7e8cd6c 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/operations/53840.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/operations/53840.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2012-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/ratio/operations/ops1.cc b/libstdc++-v3/testsuite/20_util/ratio/operations/ops1.cc
index c9f9808c418..e6ed871ca7e 100644
--- a/libstdc++-v3/testsuite/20_util/ratio/operations/ops1.cc
+++ b/libstdc++-v3/testsuite/20_util/ratio/operations/ops1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // 2008-07-03 Chris Fairles <chris.fairles@gmail.com>
 
diff --git a/libstdc++-v3/testsuite/20_util/shared_ptr/atomic/3.cc b/libstdc++-v3/testsuite/20_util/shared_ptr/atomic/3.cc
index 0e36d2290da..111cd16d319 100644
--- a/libstdc++-v3/testsuite/20_util/shared_ptr/atomic/3.cc
+++ b/libstdc++-v3/testsuite/20_util/shared_ptr/atomic/3.cc
@@ -2,7 +2,6 @@
 // { dg-options "-pthread"  }
 // { dg-require-effective-target c++11 }
 // { dg-require-effective-target pthread }
-// { dg-require-cstdint "" }
 // { dg-require-gthreads "" }
 
 // Copyright (C) 2014-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/20_util/system_clock/1.cc b/libstdc++-v3/testsuite/20_util/system_clock/1.cc
index 9e64a8089e3..d2e47b95e3a 100644
--- a/libstdc++-v3/testsuite/20_util/system_clock/1.cc
+++ b/libstdc++-v3/testsuite/20_util/system_clock/1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 // { dg-require-time "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/20_util/time_point/1.cc b/libstdc++-v3/testsuite/20_util/time_point/1.cc
index 061ddae5299..baf2b7d07df 100644
--- a/libstdc++-v3/testsuite/20_util/time_point/1.cc
+++ b/libstdc++-v3/testsuite/20_util/time_point/1.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/time_point/2.cc b/libstdc++-v3/testsuite/20_util/time_point/2.cc
index bf382b774b8..d6255113da6 100644
--- a/libstdc++-v3/testsuite/20_util/time_point/2.cc
+++ b/libstdc++-v3/testsuite/20_util/time_point/2.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/time_point/3.cc b/libstdc++-v3/testsuite/20_util/time_point/3.cc
index 9688ed060f6..8163b29153e 100644
--- a/libstdc++-v3/testsuite/20_util/time_point/3.cc
+++ b/libstdc++-v3/testsuite/20_util/time_point/3.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/20_util/time_point/requirements/explicit_instantiation/explicit_instantiation.cc b/libstdc++-v3/testsuite/20_util/time_point/requirements/explicit_instantiation/explicit_instantiation.cc
index 0a5eca4bc5c..9fca4c0cb18 100644
--- a/libstdc++-v3/testsuite/20_util/time_point/requirements/explicit_instantiation/explicit_instantiation.cc
+++ b/libstdc++-v3/testsuite/20_util/time_point/requirements/explicit_instantiation/explicit_instantiation.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc
index 88fdeada219..df5d7088824 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc
index d8cb5c954fa..09d42eb7446 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc
index 46e8e15130d..a0a76977697 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc
@@ -1,6 +1,5 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++17" }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc
index 031fd4c8ecf..9166e0b8f10 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc
@@ -1,6 +1,5 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++17" }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc
index c3b8ee53710..6887988f738 100644
--- a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc
index 2242a2b3168..b71872dc70f 100644
--- a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc
+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/21_strings/headers/string/types_std_c++0x.cc b/libstdc++-v3/testsuite/21_strings/headers/string/types_std_c++0x.cc
index 03b5f9f682d..038c3681788 100644
--- a/libstdc++-v3/testsuite/21_strings/headers/string/types_std_c++0x.cc
+++ b/libstdc++-v3/testsuite/21_strings/headers/string/types_std_c++0x.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/char16_t.cc b/libstdc++-v3/testsuite/22_locale/codecvt/char16_t.cc
index 71f7ec7654a..732b637123f 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/char16_t.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/char16_t.cc
@@ -16,7 +16,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // [locale.codecvt], C++11 22.4.1.4.  specialization.
 
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/char32_t.cc b/libstdc++-v3/testsuite/22_locale/codecvt/char32_t.cc
index 09a37e4cadd..fe60b242568 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/char32_t.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/char32_t.cc
@@ -1,5 +1,4 @@
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 // 2014-04-24 Rüdiger Sonderfeld
 
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc
index bfac1fa670d..5015e76e361 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc
@@ -16,7 +16,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 #include <codecvt>
 #include <type_traits>
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc
index 62085e2cd99..20b2afe8798 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc
@@ -16,7 +16,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 #include <codecvt>
 #include <type_traits>
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc
index a7055f059a2..853e260dd15 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc
@@ -16,7 +16,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 
 #include <codecvt>
 #include <type_traits>
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/utf8.cc b/libstdc++-v3/testsuite/22_locale/codecvt/utf8.cc
index c85384e78b8..9623c466892 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/utf8.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/utf8.cc
@@ -16,7 +16,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do run { target c++11 } }
-// { dg-require-cstdint "" }
 
 #include <locale>
 #include <iterator>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/bool/72847.cc b/libstdc++-v3/testsuite/23_containers/vector/bool/72847.cc
index 91d10f95230..d906fb0f3d1 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/bool/72847.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/bool/72847.cc
@@ -15,7 +15,6 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// { dg-require-cstdint "" }
 // { dg-skip-if "" { *-*-* } { "-fno-exceptions" } }
 
 #include <vector>
diff --git a/libstdc++-v3/testsuite/23_containers/vector/debug/multithreaded_swap.cc b/libstdc++-v3/testsuite/23_containers/vector/debug/multithreaded_swap.cc
index fd95ebad636..a7089f09c1d 100644
--- a/libstdc++-v3/testsuite/23_containers/vector/debug/multithreaded_swap.cc
+++ b/libstdc++-v3/testsuite/23_containers/vector/debug/multithreaded_swap.cc
@@ -2,7 +2,6 @@
 // { dg-options "-pthread"  }
 // { dg-require-effective-target c++11 }
 // { dg-require-effective-target pthread }
-// { dg-require-cstdint "" }
 // { dg-require-gthreads "" }
 // { dg-require-debug-mode "" }
 // Copyright (C) 2010-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char16_t/1.cc b/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char16_t/1.cc
index be41f5254db..0389c1586ca 100644
--- a/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char16_t/1.cc
+++ b/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char16_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++14 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char32_t/1.cc b/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char32_t/1.cc
index a7e8c906763..a8b8d195a9f 100644
--- a/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char32_t/1.cc
+++ b/libstdc++-v3/testsuite/experimental/string_view/requirements/explicit_instantiation/char32_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++14 } }
-// { dg-require-cstdint "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/1.cc b/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/1.cc
index f61e6d6009b..bdcda542491 100644
--- a/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/1.cc
+++ b/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 // { dg-require-string-conversions "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
diff --git a/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/1.cc b/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/1.cc
index 934e4da1962..d7ee6a59755 100644
--- a/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/1.cc
+++ b/libstdc++-v3/testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/1.cc
@@ -1,5 +1,4 @@
 // { dg-do compile { target c++11 } }
-// { dg-require-cstdint "" }
 // { dg-require-string-conversions "" }
 
 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
