--- Libc/Libc-1725.40.4/include/alloca.h
+++ Libc/Libc-1353.11.2/include/alloca.h
@@ -25,15 +25,12 @@
 #define _ALLOCA_H_
 
 #include <sys/cdefs.h>
-#include <_bounds.h>
 #include <_types.h>
 #include <sys/_types/_size_t.h>
 
-_LIBC_SINGLE_BY_DEFAULT()
-
 #ifndef UNIFDEF_DRIVERKIT
 __BEGIN_DECLS
-void	*_LIBC_SIZE(__size) alloca(size_t __size);		/* built-in for gcc */
+void	*alloca(size_t);		/* built-in for gcc */
 __END_DECLS
 #endif /* UNIFDEF_DRIVERKIT */