use the proper method for building version.h

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@134352 65c4cc65-6c06-0410-ace0-fbb531ad65f3

Makefile

@@ -358,7 +358,7 @@ defaults.h: makeopts
 	fi
 	@rm -f $@.tmp
 
-include/asterisk/version.h:
+include/asterisk/version.h: FORCE
 	@build_tools/make_version_h > $@.tmp
 	@if cmp -s $@.tmp $@ ; then : ; else \
 		mv $@.tmp $@ ; \
@@ -777,4 +777,6 @@ menuselect-tree: $(foreach dir,$(filter-out main,$(MOD_SUBDIRS)),$(wildcard $(di
 	@cat sounds/sounds.xml >> $@
 	@echo "</menu>" >> $@
 
-.PHONY: menuselect main sounds clean dist-clean distclean all prereqs cleantest uninstall _uninstall uninstall-all dont-optimize $(SUBDIRS_INSTALL) $(SUBDIRS_DIST_CLEAN) $(SUBDIRS_CLEAN) $(SUBDIRS_UNINSTALL) $(SUBDIRS) $(MOD_SUBDIRS_EMBED_LDSCRIPT) $(MOD_SUBDIRS_EMBED_LDFLAGS) $(MOD_SUBDIRS_EMBED_LIBS) badshell menuselect.makeopts include/asterisk/version.h installdirs
+.PHONY: menuselect main sounds clean dist-clean distclean all prereqs cleantest uninstall _uninstall uninstall-all dont-optimize $(SUBDIRS_INSTALL) $(SUBDIRS_DIST_CLEAN) $(SUBDIRS_CLEAN) $(SUBDIRS_UNINSTALL) $(SUBDIRS) $(MOD_SUBDIRS_EMBED_LDSCRIPT) $(MOD_SUBDIRS_EMBED_LDFLAGS) $(MOD_SUBDIRS_EMBED_LIBS) badshell menuselect.makeopts installdirs
+
+FORCE: