__sym_default
__sym_default(fts_open, fts_open, FBSD_1.9);
__sym_default(fts_close, fts_close, FBSD_1.9);
__sym_default(fts_read, fts_read, FBSD_1.9);
__sym_default(fts_set, fts_set, FBSD_1.9);
__sym_default(fts_children, fts_children, FBSD_1.9);
__sym_default(fts_get_clientptr, fts_get_clientptr, FBSD_1.9);
__sym_default(fts_get_stream, fts_get_stream, FBSD_1.9);
__sym_default(fts_set_clientptr, fts_set_clientptr, FBSD_1.9);
__sym_default(fts_open_b, fts_open_b, FBSD_1.9);
__sym_default(openat, openat, FBSD_1.2);
__sym_default(setcontext, setcontext, FBSD_1.2);
__sym_default(swapcontext, swapcontext, FBSD_1.2);
#define SYM_DEFAULT(sym, impl, ver) __sym_default(sym, impl, ver)
#ifndef __sym_default
#ifndef __sym_default