kc3-lang/gnulib/m4/sys_socket_h.m4

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• Hash : 8f7399b9
  Author :
  Date : 2006-02-16T09:48:07
  

  * sys_socket_h.m4 (gl_HEADER_SYS_SOCKET): Don't attempt using
  winsock2.h or ws2tcpip.h when sys/socket.h is present. Fixes
  'present but cannot compile' warnings on cygwin.
  * socklen.m4 (gl_TYPE_SOCKLEN_T): Use gl_HEADER_SYS_SOCKET.  Don't
  use ws2tcpip.h if sys/socket.h works.
  * getaddrinfo.m4 (gl_PREREQ_GETADDRINFO): Use gl_HEADER_SYS_SOCKET.
  (gl_GETADDRINFO): Don't use ws2tcpip.h when sys/socket.h is present.
  

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• m4/sys_socket_h.m4

• # 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)
  ])
  

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