SHUT_WR           137 maint/gnulib/lib/sys_socket.in.h # if !defined SHUT_WR
SHUT_WR           187 maint/gnulib/lib/sys_socket.in.h # if !defined SHUT_WR && defined SD_SEND
SHUT_WR            27 maint/gnulib/tests/test-sys_socket.c int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };