[Bug #19635] Preserve `errno`

The following functions are turned into macros and no longer can be
used as expressions in core.
- rb_sys_fail
- rb_sys_fail_str
- rb_sys_fail_path

1 files changed, 2 insertions, 0 deletions

diff --git a/error.c b/error.c
index 3d44b6671b..cb954dbf9e 100644
--- a/error.c
+++ b/error.c
@@ -3312,12 +3312,14 @@ rb_syserr_fail_str(int e, VALUE mesg)
     rb_exc_raise(rb_syserr_new_str(e, mesg));
 }
 
+#undef rb_sys_fail
 void
 rb_sys_fail(const char *mesg)
 {
     rb_exc_raise(make_errno_exc(mesg));
 }
 
+#undef rb_sys_fail_str
 void
 rb_sys_fail_str(VALUE mesg)
 {