Subject: Re: [GNULIB v2 1/2] file-has-acl: Split feature tests again

From: Paul Eggert <[email-masked]>
Date: Wed, 27 May 2015 11:14:58 -0700

I found one nit:

> +    AC_CHECK_HEADERS([linux/xattr.h])
> +    AC_CHECK_HEADERS([sys/xattr.h],
> +      [AC_CHECK_FUNCS_ONCE([getxattr])])

This is missing _ONCE and non-ONCE calls, which doesn't work as 
expected.  Simplest fix is to replace AC_CHECK_FUNCS_ONCE with 
AC_CHECK_FUNCS.