10.cc: Add dg-require-fileio.

2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>

	libstdc++-v3/

	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
	Add dg-require-fileio.
	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
	Likewise.
	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
	Likewise.
	* testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
	Likewise.
	* testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
	Likewise.
	* testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
	* testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
	Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
	Likewise.
	* testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
	* testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
	* testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
	* testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
	* testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
	* testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
	* testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
	Likewise.
	* testsuite/27_io/objects/wchar_t/10.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
	* testsuite/experimental/string_view/inserters/wchar_t/2.cc:
	Likewise.
	* testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.

From-SVN: r264022

42 files changed, 128 insertions, 0 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index d14bbaa..f5efaea 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,64 @@
+2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>
+
+	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
+	Add dg-require-fileio.
+	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
+	Likewise.
+	* testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
+	Likewise.
+	* testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
+	Likewise.
+	* testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
+	* testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
+	* testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
+	* testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
+	* testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
+	Likewise.
+	* testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
+	Likewise.
+	* testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
+	* testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
+	* testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
+	* testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
+	* testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
+	* testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
+	* testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
+	* testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
+	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
+	Likewise.
+	* testsuite/27_io/objects/wchar_t/10.cc: Likewise.
+	* testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
+	* testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
+	* testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
+	* testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
+	* testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
+	* testsuite/experimental/string_view/inserters/wchar_t/2.cc:
+	Likewise.
+	* testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.
+
 2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>
 
 	* testsuite/experimental/propagate_const/observers/1.cc: Make
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc
index c070ffd..46ff87c 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc
@@ -18,6 +18,7 @@
 // 21.3.7.9 inserters and extractors
 
 // { dg-options "-DMAX_SIZE=505" { target simulator } }
+// { dg-require-fileio "" }
 
 #ifndef MAX_SIZE
 #define MAX_SIZE 777
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc
index 96db4ab..796664c 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc
@@ -18,6 +18,7 @@
 // 21.3.7.9 inserters and extractors
 
 // { dg-options "-DMAX_SIZE=466" { target simulator } }
+// { dg-require-fileio "" }
 
 #ifndef MAX_SIZE
 #define MAX_SIZE 666
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc
index d5e453f..87f51d4 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc
@@ -23,6 +23,8 @@
 // working, not to mention other major details like char_traits, and
 // all of the string class.
 
+// { dg-require-fileio "" }
+
 #include <string>
 #include <fstream>
 #include <iostream>
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc b/libstdc++-v3/testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc
index ebb2752..a8aaf15 100644
--- a/libstdc++-v3/testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc
@@ -1,4 +1,5 @@
 // { dg-options "-std=gnu++17" }
+// { dg-require-fileio "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc
index 3c2674f..4221642 100644
--- a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc
@@ -17,6 +17,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iterator>
 #include <fstream>
 #include <algorithm>
diff --git a/libstdc++-v3/testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc b/libstdc++-v3/testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc
index c49661e..62e15ef 100644
--- a/libstdc++-v3/testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc
@@ -17,6 +17,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iterator>
 #include <fstream>
 #include <algorithm>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc
index 9982948..62b37bad 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.3 filebuf member functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc
index f940fde..b82d19b 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.3 filebuf member functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc
index a8688da..1de3835 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.3 filebuf member functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc
index 70cfa4b..0326cbf 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.3 filebuf member functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc
index 45b1cba..de0c9b4 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <fstream>
 #include <locale>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc
index 7f16d17..e83afa6 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc
index 203f195..5a6cad9 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc
index 078b645..58a6559 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc
index 235133e..1f84a7b 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc
index 4e8d5c9..4f88ee0 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc
index cdfc135..6217b2b 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc
index ee9ead8..2485ca7 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc
@@ -17,6 +17,8 @@
 
 // 27.8.1.4 Overridden virtual functions
 
+// { dg-require-fileio "" }
+
 #include <locale>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc
index 855aa77..bad2326 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc
@@ -1,4 +1,5 @@
 // { dg-require-namedlocale "se_NO.UTF-8" }
+// { dg-require-fileio "" }
 
 // 2003-09-04  Petur Runolfsson  <peturr02@ru.is>
 
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc
index 67bc2c0..38dafa7 100644
--- a/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc
@@ -1,4 +1,5 @@
 // { dg-require-namedlocale "se_NO.UTF-8" }
+// { dg-require-fileio "" }
 
 // 2003-09-04  Petur Runolfsson  <peturr02@ru.is>
 
diff --git a/libstdc++-v3/testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc
index 7437cff..c0702092 100644
--- a/libstdc++-v3/testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc
@@ -16,6 +16,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do run { target *-*-mingw* } }
+// { dg-require-fileio "" }
 
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_ifstream/open/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_ifstream/open/wchar_t/1.cc
index e236697..eb8bf0a 100644
--- a/libstdc++-v3/testsuite/27_io/basic_ifstream/open/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_ifstream/open/wchar_t/1.cc
@@ -18,6 +18,7 @@
 // 30.9.3.1 basic_ifstream constructors [ifstream.cons]
 
 // { dg-do run { target *-*-mingw* } }
+// { dg-require-fileio "" }
 
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc
index b34b397..01643a4 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc
@@ -20,6 +20,7 @@
 // 27.6.1.2.3 basic_istream::operator>>
 
 // { dg-options "-DMAX_SIZE=466" { target simulator } }
+// { dg-require-fileio "" }
 
 #ifndef MAX_SIZE
 #define MAX_SIZE 666
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc
index 493e260..db782f5 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc
@@ -19,6 +19,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <istream>
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/get/wchar_t/2.cc b/libstdc++-v3/testsuite/27_io/basic_istream/get/wchar_t/2.cc
index bcb9ca9..c56d34c 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/get/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/get/wchar_t/2.cc
@@ -19,6 +19,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <istream>
 #include <sstream>
 #include <fstream>
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/getline/wchar_t/5.cc b/libstdc++-v3/testsuite/27_io/basic_istream/getline/wchar_t/5.cc
index 15546f4..f771a58 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/getline/wchar_t/5.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/getline/wchar_t/5.cc
@@ -18,6 +18,7 @@
 // 27.6.1.3 unformatted input functions
 
 // { dg-options "-DMAX_LENGTH=7" { target simulator } }
+// { dg-require-fileio "" }
 
 #ifndef MAX_LENGTH
 #define MAX_LENGTH 777
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/2.cc b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/2.cc
index 3336c1f..116adbf 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/2.cc
@@ -18,6 +18,7 @@
 // 27.6.1.3 unformatted input functions
 
 // { dg-options "-DMAX_SIZE=355" { target simulator } }
+// { dg-require-fileio "" }
 
 #ifndef MAX_SIZE
 #define MAX_SIZE 555
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/3.cc b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/3.cc
index f6d7116..cf231bb 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/3.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/ignore/wchar_t/3.cc
@@ -19,6 +19,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <istream>
 #include <fstream>
 #include <limits>
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc b/libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc
index 962b93e..d95ab8e 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc
@@ -22,6 +22,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <istream>
 #include <sstream>
 #include <fstream>
diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc b/libstdc++-v3/testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc
index 68059d4..7271731 100644
--- a/libstdc++-v3/testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc
@@ -20,6 +20,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <istream>
 #include <sstream>
 #include <fstream>
diff --git a/libstdc++-v3/testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc
index ae9893e..e26c2ea 100644
--- a/libstdc++-v3/testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc
@@ -16,6 +16,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do run { target *-*-mingw* } }
+// { dg-require-fileio "" }
 
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_ofstream/open/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_ofstream/open/wchar_t/1.cc
index e024a27..14fe143 100644
--- a/libstdc++-v3/testsuite/27_io/basic_ofstream/open/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_ofstream/open/wchar_t/1.cc
@@ -18,6 +18,7 @@
 // 30.9.4.1 basic_ofstream constructors [ofstream.cons]
 
 // { dg-do run { target *-*-mingw* } }
+// { dg-require-fileio "" }
 
 #include <fstream>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc
index de13f51..9857adb 100644
--- a/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc
@@ -19,6 +19,8 @@
 // @require@ %-*.tst %-*.txt
 // @diff@ %-*.tst %-*.txt
 
+// { dg-require-fileio "" }
+
 #include <ostream>
 #include <sstream>
 #include <fstream>
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/10.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/10.cc
index f3cb6d7..199622d 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/10.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/10.cc
@@ -1,4 +1,5 @@
 // { dg-require-namedlocale "se_NO.UTF-8" }
+// { dg-require-fileio "" }
 
 // 2003-05-01  Petur Runolfsson  <peturr02@ru.is>
 
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-1.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-1.cc
index b6cd0cc..30622b0 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-1.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-1.cc
@@ -18,6 +18,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iostream>
 #include <cstdio>
 #include <testsuite_hooks.h>
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-2.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-2.cc
index 32d2f90..616490d 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-2.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-2.cc
@@ -15,6 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iostream>
 #include <cstdio>
 #include <cwchar>
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-3.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-3.cc
index dc81f50..bcad0ce 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-3.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-3.cc
@@ -18,6 +18,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iostream>
 #include <cwchar>
 #include <cstdio>
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-4.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-4.cc
index 772fd57..0861815 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-4.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-4.cc
@@ -15,6 +15,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <iostream>
 #include <cstdio>
 #include <cwchar>
diff --git a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-5.cc b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-5.cc
index c2fb4fb..760b87f 100644
--- a/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-5.cc
+++ b/libstdc++-v3/testsuite/27_io/objects/wchar_t/12048-5.cc
@@ -20,6 +20,7 @@
 // only returns characters that were read with cin.rdbuf()->sbumpc()
 
 // { dg-do run { xfail *-*-* } }
+// { dg-require-fileio "" }
 
 #include <iostream>
 #include <cstdio>
diff --git a/libstdc++-v3/testsuite/experimental/string_view/inserters/wchar_t/2.cc b/libstdc++-v3/testsuite/experimental/string_view/inserters/wchar_t/2.cc
index 4b4b6e4..a8f6417 100644
--- a/libstdc++-v3/testsuite/experimental/string_view/inserters/wchar_t/2.cc
+++ b/libstdc++-v3/testsuite/experimental/string_view/inserters/wchar_t/2.cc
@@ -1,4 +1,5 @@
 // { dg-do run { target c++14 } }
+// { dg-require-fileio "" }
 
 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
 //
diff --git a/libstdc++-v3/testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc b/libstdc++-v3/testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc
index 49582c8..72fde99 100644
--- a/libstdc++-v3/testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc
+++ b/libstdc++-v3/testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc
@@ -17,6 +17,8 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
+// { dg-require-fileio "" }
+
 #include <ext/stdio_sync_filebuf.h>
 #include <cstring>
 #include <testsuite_hooks.h>