S_ISSOCK          172 maint/gnulib/lib/sys_stat.in.h # undef S_ISSOCK
S_ISSOCK          263 maint/gnulib/lib/sys_stat.in.h #  define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
S_ISSOCK          265 maint/gnulib/lib/sys_stat.in.h #  define S_ISSOCK(m) 0