Noticed it doesn't properly re-build for tree.def changes. Built on x86_64, applied.
Richard. 2015-10-23 Richard Biener <rguent...@suse.de> * Makefile.in (build/genmatch.o): Properly depend on is-a.h, tree.def and builtins.def. Index: gcc/Makefile.in =================================================================== --- gcc/Makefile.in (revision 229233) +++ gcc/Makefile.in (working copy) @@ -2566,7 +2566,8 @@ build/genhooks.o : genhooks.c $(TARGET_D build/genmddump.o : genmddump.c $(RTL_BASE_H) $(BCONFIG_H) $(SYSTEM_H) \ coretypes.h $(GTM_H) errors.h $(READ_MD_H) gensupport.h build/genmatch.o : genmatch.c $(BCONFIG_H) $(SYSTEM_H) \ - coretypes.h errors.h $(HASH_TABLE_H) hash-map.h $(GGC_H) + coretypes.h errors.h $(HASH_TABLE_H) hash-map.h $(GGC_H) is-a.h \ + tree.def builtins.def # Compile the programs that generate insn-* from the machine description. # They are compiled with $(COMPILER_FOR_BUILD), and associated libraries,