perl: backport a fix for parrallel build

SLAPOS-SR-TEST-MASTER sometimes reveal errors:
```
Can't locate Getopt/Long.pm in @INC (you may need to install the Getopt::Long module)
...
makefile:588: recipe for target 'cpan/podlators/pm_to_blib' failed
make: *** [cpan/podlators/pm_to_blib] Error 25
```

Backport a fix for this problem discussed at https://rt.perl.org/Public/Bug/Display.html?id=132360

/reviewed-on nexedi/slapos!542

component/perl/0001-Fix-missing-build-dependency-for-pods.patch

+From 26cf06121b03ef60fd49af6f0f56e743b332f6b0 Mon Sep 17 00:00:00 2001
+From: Dan Dedrick <ddedrick@lexmark.com>
+Date: Thu, 12 Oct 2017 21:49:39 -0400
+Subject: [PATCH] Fix missing build dependency for pods
+
+When building perl with highly parallel options (e.g. -j 32) on a machine
+with many cores (e.g. 32) ocassionaly it fails with the following type
+of error.
+
+make[1]: Entering directory '.../cpan/podlators'
+Can't locate Getopt/Long.pm in @INC (you may need to install the Getopt::Long module) (@INC contains: .../cpan/AutoLoader/lib .../dist/Carp/lib .../dist/PathTools .../dist/PathTools/lib .../cpan/ExtUtils-Install/lib .../cpan/ExtUtils-MakeMaker/lib .../cpan/ExtUtils-Manifest/lib .../cpan/File-Path/lib .../ext/re .../dist/Term-ReadLine/lib .../dist/Exporter/lib .../ext/File-Find/lib .../cpan/Text-Tabs/lib .../dist/constant/lib .../cpan/version/lib .../lib ../../lib .) at .../cpan/ExtUtils-MakeMaker/lib/ExtUtils/Command/MM.pm line 109.
+Makefile:445: recipe for target 'manifypods' failed
+make[1]: *** [manifypods] Error 2
+
+The scripts pod2man, pod2text, podchecker, podselect, and pod2usage all use
+Getopt-Long and since they are all part of nonxs modules this needs to be
+added here to prevent these build races.
+---
+ write_buildcustomize.pl | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/write_buildcustomize.pl b/write_buildcustomize.pl
+index 8666a6bce2..7a55405029 100644
+--- a/write_buildcustomize.pl
++++ b/write_buildcustomize.pl
+@@ -39,6 +39,7 @@ my @toolchain = qw(cpan/AutoLoader/lib
+                    cpan/Text-Tabs/lib
+ 		   dist/constant/lib
+ 		   cpan/version/lib
++		   cpan/Getopt-Long/lib
+ 		   );
+ 
+ # Text-ParseWords used only in ExtUtils::Liblist::Kid::_win32_ext()
+@@ -47,7 +48,6 @@ my @toolchain = qw(cpan/AutoLoader/lib
+ push @toolchain, qw(
+ 	cpan/Text-ParseWords/lib
+ 	dist/ExtUtils-ParseXS/lib
+-	cpan/Getopt-Long/lib
+ 	cpan/parent/lib
+ 	cpan/ExtUtils-Constant/lib
+ ) if $^O eq 'MSWin32';
+-- 
+2.13.6
+

component/perl/buildout.cfg

@@ -15,6 +15,7 @@ siteprefix = ${buildout:parts-directory}/site_${:_buildout_section_name_}
 patch-options = -p1
 patches =
   ${:_profile_base_location_}/perl-keep-linker-flags-in-ldflags.patch#4e8e0c59d7176eafb0c7402dea17bef1
+  ${:_profile_base_location_}/0001-Fix-missing-build-dependency-for-pods.patch#85aff81f3bea34fcd6ce9a611ee1cdb2
 configure-command =
   sh Configure -des \
     -Dprefix=${buildout:parts-directory}/${:_buildout_section_name_} \