[PATCH] fix klibc with printf() and gcc

On Mon, Jan 12, 2004 at 05:04:45PM -0800, Greg KH wrote:
> Very nice, applied.  But I did have to make one small change to get the
> code to build properly with klibc:
>
> > +static void print_record(char *path, struct udevice *dev)
> > +{
> > +	printf("P: %s\n", path);
> > +	printf("N: %s\n", dev->name);
> > +	printf("S: %s\n", dev->symlink);
> > +	printf("O: %s\n", dev->owner);
> > +	printf("G: %s\n", dev->group);
> > +	printf("\n");
> > +}
>
> Turns out that gcc likes to convert single character printf() calls to
> putchar() which is only defined in klibc as a macro :(

Just for information. This seems to fix the gcc with klibc :)

Makefile

@@ -133,7 +133,7 @@ ifeq ($(strip $(USE_KLIBC)),true)
 	LIBC =	$(ARCH_LIB_OBJS) $(LIB_OBJS) $(CRT0)
 	CFLAGS += -nostdinc -I$(INCLUDE_DIR) -I$(KLIBC_DIR)/arch/$(ARCH)/include \
 		-I$(INCLUDE_DIR)/bits$(BITSIZE) -I$(GCCINCDIR) -I$(LINUX_INCLUDE_DIR) \
-		-D__KLIBC__
+		-D__KLIBC__ -fno-builtin-printf
 	LIB_OBJS =
 	LDFLAGS = --static --nostdlib -nostartfiles -nodefaultlibs
 else