GC_BUILD          922 gc/include/gc.h #  ifndef GC_BUILD
GC_BUILD          129 gc/include/gc_config_macros.h # ifdef GC_BUILD
GC_BUILD          137 gc/include/gc_config_macros.h # ifdef GC_BUILD
GC_BUILD          145 gc/include/gc_config_macros.h # ifdef GC_BUILD