| # sys_socket_h.m4 serial 2 |
| dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| dnl From Simon Josefsson. |
| |
| AC_DEFUN([gl_HEADER_SYS_SOCKET], |
| [ |
| AC_CHECK_HEADERS_ONCE([sys/socket.h]) |
| if test $ac_cv_header_sys_socket_h = yes; then |
| SYS_SOCKET_H='' |
| else |
| dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make |
| dnl the check for those headers unconditional; yet cygwin reports |
| dnl that the headers are present but cannot be compiled (since on |
| dnl cygwin, all socket information should come from sys/socket.h). |
| AC_CHECK_HEADERS([winsock2.h ws2tcpip.h]) |
| SYS_SOCKET_H='sys/socket.h' |
| fi |
| AC_SUBST(SYS_SOCKET_H) |
| ]) |
