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ntp 4.2.6p5

    1: $(DEPDIR)/deps-ver: $(top_srcdir)/deps-ver
    2: 	@[ -f $@ ] ||							\
    3: 		cp $(top_srcdir)/deps-ver $@
    4: 	@[ -w $@ ] ||							\
    5: 		chmod ug+w $@
    6: 	@cmp $(top_srcdir)/deps-ver $@ > /dev/null || (			\
    7: 		$(MAKE) clean &&					\
    8: 		echo -n "Prior $(subdir)/$(DEPDIR) version " &&		\
    9: 		cat $@ &&						\
   10: 		rm -rf $(DEPDIR) &&					\
   11: 		mkdir $(DEPDIR) && 					\
   12: 		case "$(top_builddir)" in				\
   13: 		 .)							\
   14: 		    ./config.status Makefile depfiles			\
   15: 		    ;;							\
   16: 		 ..)							\
   17: 			cd .. &&					\
   18: 			./config.status $(subdir)/Makefile depfiles &&	\
   19: 			cd $(subdir)					\
   20: 		    ;;							\
   21: 		 *)							\
   22: 		    echo 'Fatal: depsver.mf Automake fragment limited'	\
   23: 			 'to immediate subdirectories.'	&&		\
   24: 		    echo "top_builddir:	$(top_builddir)" &&		\
   25: 		    echo "subdir:	$(subdir)" &&			\
   26: 		    exit 1						\
   27: 		    ;;							\
   28: 		esac &&							\
   29: 		echo -n "Cleaned $(subdir)/$(DEPDIR) version " &&	\
   30: 		cat $(top_srcdir)/deps-ver				\
   31: 	)
   32: 	cp $(top_srcdir)/deps-ver $@
   33: 
   34: .deps-ver: $(top_srcdir)/deps-ver
   35: 	@[ ! -d $(DEPDIR) ] || $(MAKE) $(DEPDIR)/deps-ver
   36: 	@touch $@
   37: 
   38: BUILT_SOURCES += .deps-ver
   39: CLEANFILES += .deps-ver
   40: 
   41: #
   42: # depsver.mf	included in Makefile.am for directories with .deps
   43: #
   44: # When building in the same directory with sources that change over
   45: # time, such as when tracking using bk, the .deps files can become
   46: # stale with respect to moved, deleted, or superceded headers.  Most
   47: # commonly, this would exhibit as make reporting a failure to make a
   48: # header file which is no longer in the location given.  To address
   49: # this issue, we use a deps-ver file which is updated with each change
   50: # that breaks old .deps files.  A copy of deps-ver is made into
   51: # $(DEPDIR) if not already present.  If $(DEPDIR)/deps-ver is present
   52: # with different contents than deps-ver, we make clean to ensure all
   53: # .o files built before the incompatible change are rebuilt along with
   54: # their updated .deps files, then remove $(DEPDIR) and recreate it as
   55: # empty stubs.
   56: #
   57: # It is normal when configured with --disable-dependency-tracking for
   58: # the DEPDIR to not have been created.  For this reason, we use the
   59: # intermediate target .deps-ver, which invokes make recursively if
   60: # DEPDIR exists.
   61: #
   62: # If you modify depsver.mf, please make the changes to the master
   63: # copy, the one in sntp is copied by the bootstrap script from it.
   64: #
   65: # This comment block follows rather than leads the related code so that
   66: # it stays with it in the generated Makefile.in and Makefile.
   67: #