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-rw-r--r--internal.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/internal.h b/internal.h
index 00a8295295..236d68524c 100644
--- a/internal.h
+++ b/internal.h
@@ -106,4 +106,7 @@ RUBY_SYMBOL_EXPORT_END
#define RBOOL(v) ((v) ? Qtrue : Qfalse)
#define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
+#ifndef __MINGW32__
+#define memcpy ruby_nonempty_memcpy
+#endif
#endif /* RUBY_INTERNAL_H */