Use the CS toolchain by default:

http://www.codesourcery.com/sgpp/lite/arm/portal/release642

Makefile.include

@@ -18,7 +18,7 @@ endef
 # Tools and flags
 
 # Set up cross compiler and toolchain definitions.
-CROSS_COMPILE ?= arm-linux-
+CROSS_COMPILE ?= arm-none-eabi-
 AS	= $(CROSS_COMPILE)as
 LD	= $(CROSS_COMPILE)ld
 CC	= $(CROSS_COMPILE)gcc

tests/printf.c

@@ -48,20 +48,20 @@
 	printf("): %d\n", sizeof(x));		\
 	} while(0)
 
-FILE *stderr;
+/* FILE *stderr; */
 
-void __assert_fail(void) {
-	return;
-}
+/* void __assert_fail(void) { */
+/* 	return; */
+/* } */
 	
-int fputs(const char *s, FILE *stream) {
-	return 0;
-}
+/* int fputs(const char *s, FILE *stream) { */
+/* 	return 0; */
+/* } */
 
-size_t fwrite(const void *ptr, size_t size, size_t nmemb,
-	      FILE *stream) {       
-	return 0;
-}
+/* size_t fwrite(const void *ptr, size_t size, size_t nmemb, */
+/* 	      FILE *stream) {        */
+/* 	return 0; */
+/* } */
 
 int main(void)
 {