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-rw-r--r--libstdc++-v3/ChangeLog5
-rw-r--r--libstdc++-v3/src/c++11/system_error.cc3
2 files changed, 7 insertions, 1 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 8c94885..644a18a 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
+
+ * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
+ would match ENOSYS.
+
2020-03-05 Jonathan Wakely <jwakely@redhat.com>
* testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
diff --git a/libstdc++-v3/src/c++11/system_error.cc b/libstdc++-v3/src/c++11/system_error.cc
index 7844afe..1f06e67 100644
--- a/libstdc++-v3/src/c++11/system_error.cc
+++ b/libstdc++-v3/src/c++11/system_error.cc
@@ -251,7 +251,8 @@ namespace
#ifdef ENOTSOCK
case ENOTSOCK:
#endif
-#ifdef ENOTSUP
+#if defined ENOTSUP && (!defined ENOSYS || ENOTSUP != ENOSYS)
+ // zTPF uses the same value for ENOSYS and ENOTSUP
case ENOTSUP:
#endif
#ifdef ENOTTY