Update TDEL10n module

+ Add a way to disable default keywords.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 3306290834)

modules/TDEL10n.cmake

@@ -149,6 +149,7 @@ endfunction( )
 #####     The methods from b) to d) can be combined.
 #####   EXCLUDES determines which files are to be excluded from processing
 #####   KEYWORDS determines additional keywords for xgettext.
+#####     Use "-" if is needed to disable default keywords.
 #####   ATTRIBUTES determines files and specification for extractattr:
 #####     source_spec:element,attribute[,context]
 #####   DESTINATION determines directory to save translation template.
@@ -174,11 +175,13 @@ macro( tde_l10n_create_template )
   unset( _desktops )
   unset( _pots )
   unset( _dest )
-  unset( _keywords )
+  unset( _keywords_add )
   unset( _attributes )
   unset( _pot )
   unset( _directive )
   set( _var _catalog )
+  set( _keywords_c_default "i18n" "i18n:1,2" "tr2i18n" "tr2i18n:1,2" "I18N_NOOP" "I18N_NOOP2" )
+  set( _keywords_desktop_default "Description" "ExtraNames" "X-TDE-Submenu" )
 
   foreach( _arg ${ARGN} )
 
@@ -212,8 +215,8 @@ macro( tde_l10n_create_template )
 
     # found directive "KEYWORDS"
     if( "+${_arg}" STREQUAL "+KEYWORDS" )
-      unset( _keywords )
+      unset( _keywords_add )
-      set( _var _keywords )
+      set( _var _keywords_add )
       set( _directive 1 )
     endif( )
 
@@ -328,10 +331,22 @@ macro( tde_l10n_create_template )
     tde_message_fatal( "no source files found" )
   endif( )
 
-  # prepare additional keywords
+  # prepare keywords
-  unset( _add_keywords )
+  unset( _keywords_c )
-  foreach( _keyword ${_keywords} )
+  unset( _keywords_desktop )
-    list( APPEND _add_keywords "-k${_keyword}" )
+  foreach( _keyword ${_keywords_c_default} ${_keywords_add} )
+    if( "${_keyword}" STREQUAL "-" )
+      unset( _keywords_c )
+      unset( _keyword )
+    endif( )
+    list( APPEND _keywords_c "-k${_keyword}" )
+  endforeach( )
+  foreach( _keyword ${_keywords_desktop_default} ${_keywords_add} )
+    if( "${_keyword}" STREQUAL "-" )
+      unset( _keywords_desktop )
+      unset( _keyword )
+    endif( )
+    list( APPEND _keywords_desktop "-k${_keyword}" )
   endforeach( )
 
   # prepare resource files *.kcfg, *.rc and *.ui
@@ -402,9 +417,7 @@ macro( tde_l10n_create_template )
   if( _files )
     execute_process(
       COMMAND ${KDE_XGETTEXT_EXECUTABLE} --foreign-user -C
-        -ki18n -ki18n:1,2 -ktr2i18n -ktr2i18n:1,2
+        ${_keywords_c} -o - ${_files}
-        -kI18N_NOOP -kI18N_NOOP2 ${_add_keywords}
-        -o - ${_files}
       WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
       OUTPUT_VARIABLE _pot
     )
@@ -426,8 +439,7 @@ macro( tde_l10n_create_template )
     endif( )
     execute_process(
       COMMAND ${XGETTEXT_EXECUTABLE} ${_withPotHeader} -L Desktop
-        -kDescription -kExtraNames -kX-TDE-Submenu ${_add_keywords}
+        ${_keywords_desktop} -o - ${_desktops}
-        -o - ${_desktops}
       WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
       OUTPUT_VARIABLE _potDesktop
     )