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-rw-r--r--lib/Headers/stdarg.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Headers/stdarg.h b/lib/Headers/stdarg.h
index bbbaff93e2..c36ab12019 100644
--- a/lib/Headers/stdarg.h
+++ b/lib/Headers/stdarg.h
@@ -26,7 +26,10 @@
#ifndef __STDARG_H
#define __STDARG_H
+#ifndef _VA_LIST
typedef __builtin_va_list va_list;
+#define _VA_LIST
+#endif
#define va_start(ap, param) __builtin_va_start(ap, param)
#define va_end(ap) __builtin_va_end(ap)
#define va_arg(ap, type) __builtin_va_arg(ap, type)