Create active header list for each module during the export phase.

At the end of the export loop, remove the outdated files.
Requires setting MOZ_TRACK_MODULE_DEPS to activate
Bug #59454 r=bryner sr=alecf

Makefile.in

@@ -185,6 +185,9 @@ include $(topsrcdir)/config/rules.mk
 export::
 	+$(LOOP_OVER_EXPORT_DIRS)
 
+export::
+	@$(PERL) $(MOZILLA_DIR)/config/purge-old-headers.pl $(DIST)/include
+
 distclean::
 	cat unallmakefiles | $(XARGS) rm -f
 	rm -f unallmakefiles $(DIST_GARBAGE)

config/Makefile.in

@@ -72,14 +72,19 @@ ifeq ($(OS_CONFIG),Rhapsody10.0)
 NSPR_CFLAGS	+= -DGETCWD_CANT_MALLOC
 endif
 
-export:: $(TARGETS)
-	$(INSTALL) -m 444 nsBuildID.h $(DIST)/include
+HEADERS		= nsBuildID.h
 ifeq ($(MOZ_OS2_TOOLS),VACPP)
-	$(INSTALL) -m 444 $(srcdir)/os2/dirent.h  $(DIST)/include
+HEADERS		+= $(srcdir)/os2/dirent.h
+endif
+
+export:: $(TARGETS) $(HEADERS)
+	$(INSTALL) -m 444 $(HEADERS) $(DIST)/include
+ifdef MOZ_TRACK_MODULE_DEPS
+	$(PERL) -I$(MOZILLA_DIR)/config $(MOZILLA_DIR)/config/build-list.pl $(PUBLIC)/.headerlist $(HEADERS)
 endif
 	-rm -f $(FINAL_LINK_COMPS) $(FINAL_LINK_LIBS) $(FINAL_LINK_COMP_NAMES)
 
-GARBAGE += build_number nsBuildId.h
+GARBAGE += build_number nsBuildID.h
 
 ifneq ($(origin BUILD_OFFICIAL)_$(origin MOZILLA_OFFICIAL),undefined_undefined)
 _BN_OFFICIAL=1

config/rules.mk

@@ -1174,6 +1174,9 @@ endif
 ifneq ($(EXPORTS),)
 export:: $(EXPORTS) $(PUBLIC)
 	$(INSTALL) $(IFLAGS1) $^
+ifdef MOZ_TRACK_MODULE_DEPS
+	$(PERL) -I$(MOZILLA_DIR)/config $(MOZILLA_DIR)/config/build-list.pl $(PUBLIC)/.headerlist $(notdir $(filter-out $(PUBLIC),$^))
+endif
 endif 
 
 ################################################################################
@@ -1230,6 +1233,9 @@ $(XPIDL_GEN_DIR)/%.h: %.idl $(XPIDL_COMPILE) $(XPIDL_GEN_DIR)/.done
 
 export:: $(patsubst %.idl,$(XPIDL_GEN_DIR)/%.h, $(XPIDLSRCS)) $(PUBLIC)
 	$(INSTALL) $(IFLAGS1) $^
+ifdef MOZ_TRACK_MODULE_DEPS
+	$(PERL) -I$(MOZILLA_DIR)/config $(MOZILLA_DIR)/config/build-list.pl $(PUBLIC)/.headerlist $(notdir $(filter-out $(PUBLIC),$^))
+endif
 
 ifndef NO_GEN_XPT
 # generate intermediate .xpt files into $(XPIDL_GEN_DIR), then link