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