Purge old headers when building with MOZ_TRACK_MODULE_DEPS set.

Bug #59454 r=jag

config/rules.mak

@@ -711,6 +711,9 @@ include <$(DEPTH)/config/java.inc>
 export:: $(EXPORTS)
     @echo +++ make: exporting headers
  	$(MAKE_INSTALL:/=\) $(MKCPYFLAGS) $(EXPORTS) $(PUBLIC)
+!ifdef MOZ_TRACK_MODULE_DEPS
+	$(PERL) -I$(DEPTH)\config $(DEPTH)\config\build-list.pl $(PUBLIC)/.headerlist $(EXPORTS)
+!endif
 
 #// don't delete exported stuff on a local clobber, use clobber_all
 #clobber::
@@ -817,6 +820,9 @@ export:: $(XPDIST)\idl
 export:: $(XPIDL_GEN_DIR) $(XPIDL_HEADERS) $(PUBLIC)
         @echo +++ make: exporting generated XPIDL header files
         $(MAKE_INSTALL) $(XPIDL_HEADERS:/=\) $(PUBLIC)
+!ifdef MOZ_TRACK_MODULE_DEPS
+	$(PERL) -I$(DEPTH)\config $(DEPTH)\config\build-list.pl $(PUBLIC)/.headerlist $(XPIDL_HEADERS)
+!endif
 
 !ifndef NO_GEN_XPT
 install:: $(XPIDL_GEN_DIR) $(TYPELIB)

makefile.win

@@ -128,6 +128,9 @@ DIRS =                         \
 
 include <$(DEPTH)\config\rules.mak>
 
+export::
+	$(PERL) $(DEPTH)\config\purge-old-headers.pl $(XPDIST)\include
+
 #//------------------------------------------------------------------------
 #//
 #// MOZILLA_OFFICIAL junk: rebase and splitsym for binary release