7438 intermittent build failures from the new boot loader
Reviewed by: Juraj Lutter <juraj.lutter@erigones.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Gordon Ross <gordon.w.ross@gmail.com>

@@ -9,17 +9,21 @@
 # http://www.illumos.org/license/CDDL.
 #
 
 #
 # Copyright 2016 Toomas Soome <tsoome@me.com>
+# Copyright 2016 RackTop Systems.
 #
 
 include $(SRC)/Makefile.master
 
 LIB=            zfsboot
 
-all: machine x86 libzfsboot.a
+all: libzfsboot.a
+
+libzfsboot.a: machine x86
+
 clean: clobber
 
 clobber:
         $(RM) machine x86 $(OBJS) libzfsboot.a