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gnupg/m4/sys_socket_h.m4
Werner Koch a7ced5d0b5 Fixed a C-89 incompatibility.
Minor changes to make it build on Debian bo.
Thanks to Alain Guibert.
2008-04-23 17:23:04 +00:00

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# 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)
])