Add support for LINGUAS for listing translations to install.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 1144a3b3e7)

doc/CMakeLists.txt

@@ -1 +1,14 @@
-tde_auto_add_subdirectories( )
+file( GLOB _dirs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} * )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
+
+foreach( _dir ${_dirs} )
+  if( IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${_dir} AND
+      EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${_dir}/CMakeLists.txt )
+    if( "${_dir}" STREQUAL "en" OR
+        "${_dir}" STREQUAL "man" OR
+        "${_linguas}" MATCHES "^;*$" OR
+        ";${_linguas};" MATCHES ";${_dir};" )
+      add_subdirectory( ${_dir} )
+    endif( )
+  endif()
+endforeach()

po/CMakeLists.txt

@@ -1,5 +1,14 @@
-file( GLOB _srcs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.po )
+file( GLOB_RECURSE po_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.po )
+string( REGEX REPLACE "[ \r\n\t]+" ";" _linguas "$ENV{LINGUAS}" )
 
-if( _srcs )
-    tde_create_translation( LANG auto OUTPUT_NAME ${PROJECT_NAME} )
-endif( )
+foreach( _po ${po_files} )
+  get_filename_component( _lang ${_po} NAME_WE )
+  if( "${_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( )