Add OPTIONS parameter to qt5_add_translation

With this it is possible to pass additional parameters to the lrelease
command

Change-Id: I8f552f1b965d6c03a9115753438d841aef181315
Task-number: QTBUG-44323
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: André Klitzing <aklitzing@gmail.com>
Reviewed-by: Kai Pastor <dg0yt@darc.de>
Reviewed-by: David Faure <david.faure@kdab.com>

src/linguist/Qt5LinguistToolsMacros.cmake

@@ -82,7 +82,14 @@ endfunction()
 
 
 function(QT5_ADD_TRANSLATION _qm_files)
-    foreach(_current_FILE ${ARGN})
+    set(options)
+    set(oneValueArgs)
+    set(multiValueArgs OPTIONS)
+
+    cmake_parse_arguments(_LRELEASE "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+    set(_lrelease_files ${_LRELEASE_UNPARSED_ARGUMENTS})
+
+    foreach(_current_FILE ${_lrelease_files})
         get_filename_component(_abs_FILE ${_current_FILE} ABSOLUTE)
         get_filename_component(qm ${_abs_FILE} NAME_WE)
         get_source_file_property(output_location ${_abs_FILE} OUTPUT_LOCATION)
@@ -95,7 +102,7 @@ function(QT5_ADD_TRANSLATION _qm_files)
 
         add_custom_command(OUTPUT ${qm}
             COMMAND ${Qt5_LRELEASE_EXECUTABLE}
-            ARGS ${_abs_FILE} -qm ${qm}
+            ARGS ${_LRELEASE_OPTIONS} ${_abs_FILE} -qm ${qm}
             DEPENDS ${_abs_FILE} VERBATIM
         )
         list(APPEND ${_qm_files} ${qm})

tests/auto/cmake/test_add_translation_macro/CMakeLists.txt

@@ -17,7 +17,7 @@ set(my_srcs myi18nobject.cpp)
 
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/some_dir")
 
-qt5_add_translation(qm_files myobject_de.ts)
+qt5_add_translation(qm_files myobject_de.ts OPTIONS -compress) # play around with OPTIONS
 
 add_executable(test_add_translation ${my_srcs} ${qm_files})
 target_link_libraries(test_add_translation ${Qt5Core_LIBRARIES})