Description:
------------
If user sets safemode or open_basedir restriction in their php.ini, they will no longer be able to use pear upgrade etc - the pear call will end with error.

NetBSD pkgsrc patches pear.sh to use -n to ignore
system php.ini, i.e to exec:

exec $PHP -C -q $INCARG -d output_buffering=1 \
 -n $INCDIR/pearcmd.php

This works as long as pear doesn't need any
non-builtin extensions or include path different
to the one compiled into the executable.

FWIW, we had no problem reports about this causing
any problem since the change was introduced (2004/12/12),
so this appears to work fine for all NetBSD pkgsrc
users.

Rather then using -n and ignoring system php.ini
completely, it would be great if CLI PHP either
ignored the open_basedir/safemode setting implicitely
or had a commandline flag to do so (which then would
be used in pear.sh/pear.bat).

Reproduce code:
---------------
Edit php.ini, set open_basedir to /nonexistent.

Then run any pear upgrade from commandline:
> pear upgrade HTML_Common

Expected result:
----------------
downloading HTML_Common-1.2.2.tar ...
Starting to download HTML_Common-1.2.2.tar (-1 bytes)
........done: 20,992 bytes
upgrade ok: channel://pear.php.net/HTML_Common-1.2.2


Actual result:
--------------
Warning: require_once(PEAR.php): failed to open stream: Operation not permitted in pearcmd.php on line 63
PHP Fatal error:  require_once(): Failed opening required 'PEAR.php' (include_path='/usr/pkg/lib/php') in /usr/pkg/lib/php/pearcmd.php on line 63