Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

Required changes:

* Add qualifying '.' to scripts or to @INC, as appropriate since we're
  enabling default_inc_excludes_dot;

* Add new platform/library definitions like double-double format and
  locale library functions/headers;

* Delete patch 020 as it's been upstreamed;

Optional changes:

* Instead of using -@rm and having that fail, emit an error message,
  and be ignored, just use @rm -f instead which will always succeed.

Security
[CVE-2017-12837] Heap buffer overflow in regular expression compiler

Compiling certain regular expression patterns with the case-insensitive
modifier could cause a heap buffer overflow and crash perl. This has
now been fixed. [perl #131582]

[CVE-2017-12883] Buffer over-read in regular expression parser

For certain types of syntax error in a regular expression pattern, the
error message could either contain the contents of a random, possibly
large, chunk of memory, or could crash perl. This has now been fixed.
[perl #131598]

[CVE-2017-12814] $ENV{$key} stack buffer overflow on Windows

A possible stack buffer overflow in the %ENV code on Windows has been
fixed by removing the buffer completely since it was superfluous anyway.
[perl #131665]

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

Signed-off-by: Michail Frolov <frolovm@pobox.com>

Beginning in PathTools 3.47 and/or perl 5.20.0, the File::Spec::canonpath()
routine returned untained strings even if passed tainted input. This defect
undermines the guarantee of taint propagation, which is sometimes used to
ensure that unvalidated user input does not reach sensitive code.

This defect was found and reported by David Golden of MongoDB, and a patch
was provided by Tony Cook.

References:

 * https://rt.perl.org/Public/Bug/Display.html?id=126862
 * https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8607

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

The old scheme didn't make any sense...not that there was a scheme really.

Signed-off-by: Marcel Denia <naoir@gmx.net>

Signed-off-by: Marcel Denia <naoir@gmx.net>