Index: busybox-1.30.0/arch/i386/Makefile
===================================================================
--- busybox-1.30.0/arch/i386/Makefile
+++ busybox-1.30.0/arch/i386/Makefile	2018-12-30 22:24:10.146178570 +0100
@@ -4,7 +4,7 @@
 
 # Allow i486 insns (basically, bswap insn)
 # Do not try to tune for 486+ (might add padding)
-CFLAGS += $(call cc-option,-march=i486 -mtune=i386,)
+CFLAGS += $(call cc-option, -mpreferred-stack-boundary=2,)
 
 ifeq ($(CONFIG_STACK_OPTIMIZATION_386),y)
 # -mpreferred-stack-boundary=2 is essential in preventing gcc 4.2.x