include build stamp in unix

@@ -122,10 +122,11 @@
 $(OBJS_DIR)/vers.o: $(OBJECTS)
         $(COMPILE.c) -DUTS_RELEASE=\"`$(ECHO) $(RELEASE) | sed -e 's/ /_/g'`\" \
             -DUTS_VERSION=\"`$(VERSION_STRING) | sed -e 's/ /_/g'`\" \
             -DUTS_PLATFORM=\"$(UNAME_M)\" -o $@ $(SRC)/uts/common/os/vers.c
         $(CTFCONVERT_O)
+        $(PROCESS_BUILDSTAMP) $@
         $(POST_PROCESS_O)
 
 $(LINTS_DIR)/vers.ln: $(SRC)/uts/common/os/vers.c
         @($(LHEAD) $(LINT.c) -DUTS_RELEASE=\"\" -DUTS_VERSION=\"\" \
             -DUTS_PLATFORM=\"\" $(SRC)/uts/common/os/vers.c $(LTAIL))