-MD depend: Putting objects on PHONY target didn't work. Use 'FORCE' dependency instead.

config/mddepend.pl

@@ -70,7 +70,9 @@ foreach $deps (@alldeps) {
     }
     if ($dep_mtime eq '' or $dep_mtime > $mtime) {
       print "$obj ";
+      $haveObjects = 1;
       last;
     }
   }
 }
+print ": FORCE\n" if $haveObjects;

config/rules.mk

@@ -973,7 +973,8 @@ MDDEPEND_FILES := $(foreach obj, $(OBJS), \
 MDDEPEND_FILES := $(wildcard $(MDDEPEND_FILES))
 ifdef MDDEPEND_FILES
 # Get the list of objects to force.
-MDDEPEND_FORCE := $(shell $(PERL) $(topsrcdir)/config/mddepend.pl $(MDDEPEND_FILES))
+MDDEPEND_FORCE := $(shell $(PERL) $(topsrcdir)/config/mddepend.pl $(MDDEPEND_FILES) > $(OBJDIR)/.deps/.all.pp)
+-include $(OBJDIR)/.deps/.all.pp
 # (MDDEPEND_FORCE gets added to the PHONY target).
 endif
 #endif
@@ -1021,7 +1022,10 @@ endif
 # Fake targets.  Always run these rules, even if a file/directory with that
 # name already exists.
 #
-.PHONY: all all_platforms alltags boot checkout clean clobber clobber_all export install libs realclean run_viewer run_apprunner $(OBJDIR) $(DIRS) $(MDDEPEND_FORCE)
+.PHONY: all all_platforms alltags boot checkout clean clobber clobber_all export install libs realclean run_viewer run_apprunner $(OBJDIR) $(DIRS) FORCE
+
+# Used as a dependency to force targets to rebuild
+FORCE:
 
 envirocheck::
 	@echo -----------------------------------