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AC_DEFUN([AC_REQUIRE_SOCKET],
[
AC_SEARCH_LIBS(socket, [xnet bsd socket inet], [have_socket=yes])
if test x"$have_socket" = x"yes"; then
AC_SEARCH_LIBS(gethostbyname, [bsd socket inet netinet nsl])
AC_CHECK_MEMBERS([struct linger.l_linger], , , [
#include <sys/types.h>
#include <sys/socket.h>
])
else
AC_MSG_ERROR([Couldn't find socket functions])
fi
])
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