_BASENAME_RTLD
#define trace() msg(_BASENAME_RTLD ": " __XSTRING(__LINE__) "\n")
rtld_fdputstr(STDERR_FILENO, _BASENAME_RTLD ": ");
rtld_fdprintf(STDERR_FILENO, _BASENAME_RTLD ": "
rtld_fdprintf(STDERR_FILENO, _BASENAME_RTLD ": morepages: "
#ifndef _BASENAME_RTLD