Hi Camm, thanks for your investigation.

On Tue, 15 Sep 2015 12:52:02 -0400, Camm Maguire wrote:

> Looking at these, it appears that some command in maximalocal.mac is
> directing a lookup in a home directory of /root when run as user
> www-data.  I can't find this file anywhere.  If you can send me a copy,
> I'll take a look.  Please note that the underlying gcl uses an algorithm

Okay, the file seems to be of Stack and I can find it
so I attatch it.  Thanks again.

Best regards,                   2015-9-16(Wed)

-- 
 **************************
 Atsuhito Kohda
 Dep. Math., Tokushima Univ.
 atsuhito_k AT tokushima-u.ac.jp
/* ***********************************************************************/
/* This file is automatically generated at installation time.            */
/* The purpose is to transfer configuration settings to Maxima.          */
/* Hence, you should not edit this file.  Edit your configuration.       */
/* This file is regularly overwritten, so your changes will be lost.     */
/* ***********************************************************************/

/* File generated on July 6, 2015, 4:00 pm */

/* Add the location to Maxima's search path */
file_search_maxima:append( 
[sconcat("/usr/share/moodle/question/type/stack/stack/maxima/###.{mac,mc}")] , 
file_search_maxima)$
file_search_lisp:append( 
[sconcat("/usr/share/moodle/question/type/stack/stack/maxima/###.{lisp}")] , 
file_search_lisp)$
file_search_maxima:append( [sconcat("/var/lib/moodle/stack/logs/###.{mac,mc}")] 
, file_search_maxima)$
file_search_lisp:append( [sconcat("/var/lib/moodle/stack/logs/###.{lisp}")] , 
file_search_lisp)$

STACK_SETUP(ex):=block(
    MAXIMA_VERSION_NUM:36,
    MAXIMA_PLATFORM:"unix",
    maxima_tempdir:"/var/lib/moodle/stack/tmp/",
    IMAGE_DIR:"/var/lib/moodle/stack/plots/",
    PLOT_TERMINAL:"png",
    PLOT_TERM_OPT:"large transparent size 450,300",
    DEL_CMD:"rm",
    GNUPLOT_CMD:"gnuplot",
    MAXIMA_VERSION:"5.36.0",
    URL_BASE:"!ploturl!",
    true)$
/* Load the main libraries */
load("stackmaxima.mac")$

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