Index: boot/Makefile.build
===================================================================
--- boot/Makefile.build	(revision f71b93841daab94be37cbab4f471444712807695)
+++ boot/Makefile.build	(revision ae7bbfd0bcf872d80ac6f3f37faf7fa216782613)
@@ -35,4 +35,6 @@
 
 DEFS = -DBOOT -DRELEASE=$(RELEASE) "-DCOPYRIGHT=$(COPYRIGHT)" "-DNAME=$(NAME)" -D__$(BITS)_BITS__ -D__$(ENDIANESS)__
+
+LFLAGS = --fatal-warnings
 
 GCC_CFLAGS = -I$(INCLUDES) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \