diff --git a/stubdom/Makefile b/stubdom/Makefile
index 888fa20d72..52c345a940 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -97,10 +97,12 @@ newlib-$(NEWLIB_VERSION): newlib-$(NEWLIB_VERSION).tar.gz
 	patch -d $@ -p1 < newlib-disable-texinfo.patch
 	patch -d $@ -p1 < newlib-cygmon-gmon.patch
 	patch -d $@ -p1 < newlib-makedoc.patch
+	patch -d $@ -p1 < newlib-fix-copy_past_newline.patch
 	find $@ -type f | xargs perl -i.bak \
 		-pe 's/\b_(tzname|daylight|timezone)\b/$$1/g'
 	touch $@
 
+NEWLIB_CFLAGS += -Wno-implicit-function-declaration
 NEWLIB_STAMPFILE=$(CROSS_ROOT)/$(GNU_TARGET_ARCH)-xen-elf/lib/libc.a
 .PHONY: cross-newlib
 cross-newlib: $(NEWLIB_STAMPFILE)
diff --git a/stubdom/newlib-fix-copy_past_newline.patch b/stubdom/newlib-fix-copy_past_newline.patch
new file mode 100644
index 0000000000..f8452480bc
--- /dev/null
+++ b/stubdom/newlib-fix-copy_past_newline.patch
@@ -0,0 +1,10 @@
+--- newlib-1.16.0/newlib/doc/makedoc.c.orig
++++ newlib-1.16.0/newlib/doc/makedoc.c
+@@ -798,6 +798,7 @@ DEFUN( iscommand,(ptr, idx),
+ }
+
+
++static unsigned int
+ DEFUN(copy_past_newline,(ptr, idx, dst),
+       string_type *ptr AND
+       unsigned int idx AND