# debug_p : debugging profiled
# thr_debug : debugging threaded
# thr_debug_p : debugging threaded profiled
# debug_p : debugging profiled
# thr_debug : debugging threaded
# thr_debug_p : debugging threaded profiled
# Some ld's support the -x flag and some don't, so the configure
# script detects which we have and sets LdXFlag to "-x" or ""
# Some ld's support the -x flag and some don't, so the configure
# script detects which we have and sets LdXFlag to "-x" or ""