S_ISFIFO          165 maint/gnulib/lib/sys_stat.in.h # undef S_ISFIFO
S_ISFIFO          205 maint/gnulib/lib/sys_stat.in.h #  define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
S_ISFIFO          207 maint/gnulib/lib/sys_stat.in.h #  define S_ISFIFO(m) 0