libstdc++: Fix use of internal feature test macro in test

This test should use __cpp_lib_ios_noreplace rather than the internal
__glibcxx_ios_noreplace macro.

libstdc++-v3/ChangeLog:

	* testsuite/27_io/ios_base/types/openmode/case_label.cc: Use
	standard feature test macro not internal one.

diff --git a/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/case_label.cc b/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/case_label.cc
index 253a0dc75668388d0da2653f35e579fd505f6e6e..e132070bf48736dc32ff442e9fdb56504ad0ae40 100644 (file)
--- a/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/case_label.cc
+++ b/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/case_label.cc
@@ -44,7 +44,7 @@ case_labels(bitmask_type b)
       break;
     case std::ios_base::trunc:
       break;
-#ifdef __glibcxx_ios_noreplace
+#ifdef __cpp_lib_ios_noreplace
     case std::ios_base::noreplace:
       break;
 #endif