clear record of installed chrome at beginning of install

config/makefile.win

@@ -55,6 +55,7 @@ GARBAGE = *.obj *.sbr *.pdb
 #// Include the common makefile rules
 #//
 #//------------------------------------------------------------------------
+include <$(DEPTH)/config/config.mak>
 include <$(DEPTH)/config/rules.mak>
 
 # update build number from within make script
@@ -110,4 +111,9 @@ install:: master.ini
 	$(MAKE_INSTALL) master.ini $(DIST)\bin\
 !endif
 
+install::
+!if exist($(DIST)\bin\chrome\installed-chrome.txt)
+	del $(DIST)\bin\chrome\installed-chrome.txt
+!endif
+
 FORCE::