116dce513Schristos# This BUILD_CONFIG option is a bit like bootstrap-debug, but rather 216dce513Schristos# than comparing stripped object files, it compares compiler internal 316dce513Schristos# state during stage3. Both can be used simultaneously. 416dce513Schristos 516dce513Schristos# This makes it slower than bootstrap-debug alone, for there's 616dce513Schristos# additional dumping and recompilation during stage3. 716dce513Schristos# bootstrap-debug-big can avoid the recompilation, if plenty of disk 816dce513Schristos# space is available. 916dce513Schristos 1016dce513SchristosSTAGE2_CFLAGS += -fcompare-debug= 1116dce513SchristosSTAGE3_CFLAGS += -fcompare-debug 12*ede78133Schristosdo-compare = $(SHELL) $(srcdir)/contrib/compare-debug $$f1 $$f2 13