From b4d2cbe393f2be08eb782706ffdaf5ce05c6e8e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Tue, 24 Mar 2020 14:46:10 +0100
Subject: Add support for LINGUAS for listing translations to install.
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Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 8adeb4111077df36629317e21fd00066bc00f397)
---
 doc/CMakeLists.txt                   | 23 ++++++++++++-----------
 translations/messages/CMakeLists.txt | 11 +++++++++--
 2 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index a8b8de4..cd4611d 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,12 +1,13 @@
-#################################################
-#
-#  (C) 2010-2011 Serghei Amelian
-#  serghei (DOT) amelian (AT) gmail.com
-#
-#  Improvements and feedback are welcome
-#
-#  This file is released under GPL >= 2
-#
-#################################################
+file( GLOB _dirs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} * )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
 
-tde_auto_add_subdirectories()
+foreach( _dir ${_dirs} )
+  if( IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${_dir} AND
+      EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${_dir}/CMakeLists.txt )
+    if( "${_dir}" STREQUAL "en" OR
+        "${_linguas}" MATCHES "^;*$" OR
+        ";${_linguas};" MATCHES ";${_dir};" )
+      add_subdirectory( ${_dir} )
+    endif( )
+  endif()
+endforeach()
diff --git a/translations/messages/CMakeLists.txt b/translations/messages/CMakeLists.txt
index 34b99fb..75c89f8 100644
--- a/translations/messages/CMakeLists.txt
+++ b/translations/messages/CMakeLists.txt
@@ -1,7 +1,14 @@
 file( GLOB_RECURSE po_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.po )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
 
 foreach( _po ${po_files} )
   get_filename_component( _lang ${_po} NAME_WE )
-  string( REGEX REPLACE "^([^/]*)/.*" "\\1" _component "${_po}" )
-  tde_create_translation( FILES ${_po} LANG ${_lang} OUTPUT_NAME ${_component} )
+  if( "${_linguas}" MATCHES "^;*$" OR ";${_linguas};" MATCHES ";${_lang};" )
+    if( "${_po}" MATCHES "^([^/]*)/.*" )
+      string( REGEX REPLACE "^([^/]*)/.*" "\\1" _component "${_po}" )
+    else( )
+      set( _component "${PROJECT_NAME}" )
+    endif( )
+    tde_create_translation( FILES ${_po} LANG ${_lang} OUTPUT_NAME ${_component} )
+  endif( )
 endforeach( )
-- 
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