S_ISNWK            79 lib/sys_stat.in.h # undef S_ISNWK
S_ISNWK           148 lib/sys_stat.in.h #  define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
S_ISNWK           150 lib/sys_stat.in.h #  define S_ISNWK(m) 0