zTPF uses the same numeric value for ENOSYS and ENOTSUP.
Ok for mainline?
libstdc++-v3/ChangeLog:
2020-03-06 Andreas Krebbel <kreb...@linux.ibm.com>
* src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
would match ENOSYS.
---
libstdc++-v3/src/c++11/system_error.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libstdc++-v3/src/c++11/system_error.cc
b/libstdc++-v3/src/c++11/system_error.cc
index 7844afe6d2a..1f06e67feea 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
--
2.24.1
