From b321f48d80db27ecff3d9d88c6881c63f27b86c0 Mon Sep 17 00:00:00 2001
From: Federico Leva <federicoleva@tiscali.it>
Date: Mon, 15 Aug 2016 12:08:51 +0200
Subject: [PATCH] Set Czech (cs) and Slovak (sk) as reciprocal fallbacks
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The two languages are mutually intelligible at a very high degree and
most speakers can be considered bilinguals or passive bilinguals.

Consulted resources:
* Eurostat special eurobarometer 386 (2012).
  http://ec.europa.eu/public_opinion/archives/ebs/ebs_386_en.pdf
* Mira Nábělková
** http://doai.io/10.1515/IJSL.2007.004: «These differences do not prevent the users of Slovak and
   Czech from understanding discourse in the other language [...]. While contact with Czech texts
   in the Slovak environment is obvious, it does not appear to be so in the opposite case.»
** High degree of passive bilingualism even in recent generations who don't feel it much.
   https://repozytorium.amu.edu.pl/bitstream/10593/9168/1/02_Viera_K0VA%C4%860VA_Czech_Slovak_intercultural_265_280.pdf
* Discussions with several translators.
** https://translatewiki.net/wiki/Thread:Portal_talk:Cs/Fallback_to_sk
** https://translatewiki.net/wiki/Thread:Portal_talk:Sk/Fallback_to_cs

Change-Id: Id85b281a3ef2f2ae00ee0aba827e94e4f5a1f924
---
 RELEASE-NOTES-1.28                | 1 +
 languages/messages/MessagesCs.php | 1 +
 languages/messages/MessagesSk.php | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/RELEASE-NOTES-1.28 b/RELEASE-NOTES-1.28
index eb9bc172be..80166ad0e6 100644
--- a/RELEASE-NOTES-1.28
+++ b/RELEASE-NOTES-1.28
@@ -76,6 +76,7 @@ changes to languages because of Phabricator reports.
   BASAbali, M. Adiputra, Naval Scene, Nemo bis, NoiX180, and 아라.
 * (T135867) shn (Shan), thanks to translators Khun Sar, Piangpha,
   Saiddzone Saimawnkham, Saosukham, and Sengwan.
+* Czech (cs) and Slovak (sk) set as reciprocal fallbacks
 
 === Other changes in 1.28 ===
 * (T128697) Improved handling of large diffs.
diff --git a/languages/messages/MessagesCs.php b/languages/messages/MessagesCs.php
index 7d79818b57..e778856fb2 100644
--- a/languages/messages/MessagesCs.php
+++ b/languages/messages/MessagesCs.php
@@ -8,6 +8,7 @@
  *
  */
 
+$fallback = 'sk';
 $fallback8bitEncoding = 'cp1250';
 
 $namespaceNames = [
diff --git a/languages/messages/MessagesSk.php b/languages/messages/MessagesSk.php
index 299fd136dd..1fa701e6f1 100644
--- a/languages/messages/MessagesSk.php
+++ b/languages/messages/MessagesSk.php
@@ -33,6 +33,8 @@
  * @author לערי ריינהארט
  */
 
+$fallback = 'cs';
+
 $specialPageAliases = [
 	'Activeusers'               => [ 'AktívniPoužívatelia' ],
 	'Allmessages'               => [ 'VšetkySprávy' ],
-- 
2.20.1