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-rw-r--r--include/ruby/3/core/rtypeddata.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/ruby/3/core/rtypeddata.h b/include/ruby/3/core/rtypeddata.h
index cc00fa2500..1627d327f9 100644
--- a/include/ruby/3/core/rtypeddata.h
+++ b/include/ruby/3/core/rtypeddata.h
@@ -160,7 +160,9 @@ RTYPEDDATA_TYPE(VALUE obj)
#if ! RUBY_NDEBUG
if (RB_UNLIKELY(! RTYPEDDATA_P(obj))) {
rb_unexpected_type(obj, RUBY_T_DATA);
+# if ! defined(__sun)
RUBY3_UNREACHABLE_RETURN(NULL);
+# endif
}
#endif