rename file so we block the common version from being built

libc/sysdeps/linux/alpha/Makefile.arch

@@ -9,7 +9,7 @@ CSRC := __syscall_error.c sigprocmask.c
 
 SSRC := \
 	__longjmp.S brk.S bsd-_setjmp.S bsd-setjmp.S clone.S \
-	divl.S divq.S pipe.S reml.S remq.S rt_sigaction.S setjmp.S \
+	divl.S divq.S pipe.S reml.S remq.S __syscall_rt_sigaction.S setjmp.S \
 	syscall.S
 
 include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch