_S_IREAD           33 maint/gnulib/lib/stat-w32.h #define S_IREAD_UGO  (_S_IREAD | (_S_IREAD >> 3) | (_S_IREAD >> 6))
_S_IREAD          123 maint/gnulib/lib/tmpfile.c                           _S_IREAD | _S_IWRITE);