1# This BUILD_CONFIG option is a bit like bootstrap-debug, but rather 2# than comparing stripped object files, it compares compiler internal 3# state during stage3. Both can be used simultaneously. 4 5# This makes it slower than bootstrap-debug alone, for there's 6# additional dumping and recompilation during stage3. 7# bootstrap-debug-big can avoid the recompilation, if plenty of disk 8# space is available. 9 10STAGE2_CFLAGS += -fcompare-debug= 11STAGE3_CFLAGS += -fcompare-debug 12do-compare = $(SHELL) $(srcdir)/contrib/compare-debug $$f1 $$f2 13