diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index cc11697..ff27019 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -11,20 +11,18 @@
 #	bootloader and increase compatibility with OpenFirmware.
 #
 #	To this end we need to define BOOTCC, etc, as the tools
-#	needed to build the 32 bit image.  These are normally HOSTCC,
-#	but may be a third compiler if, for example, you are cross
-#	compiling from an intel box.  Once the 64bit ppc gcc is
-#	stable it will probably simply be a compiler switch to
-#	compile for 32bit mode.
+#	needed to build the 32 bit image.  That's normally the same
+#	compiler for the rest of the kernel, with the -m32 flag added.
 #	To make it easier to setup a cross compiler,
 #	CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
 #	in the toplevel makefile.
 
 all: $(obj)/zImage
 
-HOSTCC		:= gcc
-BOOTCFLAGS	:= $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
-		   $(shell $(CROSS32CC) -print-file-name=include) -fPIC
+BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
+		 -fno-strict-aliasing -Os -msoft-float -pipe \
+		 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
+		 -isystem $(shell $(CROSS32CC) -print-file-name=include)
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
 
 ifeq ($(call cc-option-yn, -fstack-protector),y)