--- gcc-4.7.3/gcc/Makefile.in	2013-04-01 10:11:11.000000000 +0200
+++ gcc-4.7.3/gcc/Makefile.in.new	2014-01-14 00:55:31.056406483 +0100
@@ -3904,7 +3904,7 @@
   $(SYSTEM_H) coretypes.h $(GTM_H) errors.h $(READ_MD_H) gensupport.h
 build/gengenrtl.o : gengenrtl.c $(BCONFIG_H) $(SYSTEM_H) rtl.def
 gengtype-lex.o build/gengtype-lex.o : gengtype-lex.c gengtype.h $(SYSTEM_H)
-gengtype-lex.o: $(CONFIG_H)
+gengtype-lex.o: $(CONFIG_H) $(BCONFIG_H)
 build/gengtype-lex.o: $(BCONFIG_H)
 gengtype-parse.o build/gengtype-parse.o : gengtype-parse.c gengtype.h \
   $(SYSTEM_H)