--- a/ipl/Makefile
+++ b/ipl/Makefile
@@ -39,7 +39,7 @@ endif
 VPATH=../lib:.
 
 AFLAGS	= -I../lib
-CFLAGS	= -DIPL_LOADER -I. -I../lib -I../include -O2 -mdisable-fpregs -Wall -fno-delete-null-pointer-checks
+CFLAGS	= -DIPL_LOADER -I. -I../lib -I../include -O2 -mdisable-fpregs -Wall -fno-delete-null-pointer-checks -fno-builtin
 LDFLAGS  = -N --section-start .init=0x60000 -e '$$START$$'
 
 all:	iplelf