_GL_ALREADY_INCLUDING_SYS_SOCKET_H 46 maint/gnulib/lib/sys_socket.in.h # define _GL_ALREADY_INCLUDING_SYS_SOCKET_H _GL_ALREADY_INCLUDING_SYS_SOCKET_H 59 maint/gnulib/lib/sys_socket.in.h # undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H