if test $gl_cv_socket_ipv6 = yes; then
AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.])
fi
if test $gl_cv_socket_ipv6 = yes; then
AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.])
fi
AC_MSG_CHECKING([for UNIX domain sockets])
AC_CACHE_VAL([gl_cv_socket_unix],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
AC_MSG_CHECKING([for UNIX domain sockets])
AC_CACHE_VAL([gl_cv_socket_unix],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>