11debfc3dSmrg# This BUILD_CONFIG option is a bit like bootstrap-debug, but rather 21debfc3dSmrg# than comparing stripped object files, it compares compiler internal 31debfc3dSmrg# state during stage3. Both can be used simultaneously. 41debfc3dSmrg 51debfc3dSmrg# This makes it slower than bootstrap-debug alone, for there's 61debfc3dSmrg# additional dumping and recompilation during stage3. 71debfc3dSmrg# bootstrap-debug-big can avoid the recompilation, if plenty of disk 81debfc3dSmrg# space is available. 91debfc3dSmrg 101debfc3dSmrgSTAGE2_CFLAGS += -fcompare-debug= 111debfc3dSmrgSTAGE3_CFLAGS += -fcompare-debug 12*a2dc1f3fSmrgdo-compare = $(SHELL) $(srcdir)/contrib/compare-debug $$f1 $$f2 13