installed_looping_handler  553 gc/misc.c      static GC_bool installed_looping_handler = FALSE;
installed_looping_handler  559 gc/misc.c            if (!installed_looping_handler && 0 != GETENV("GC_LOOP_ON_ABORT")) {
installed_looping_handler  561 gc/misc.c              installed_looping_handler = TRUE;