cmake: Ensure generated sources are up to date for translate target

Some sources might be generated, and while they likely do not contain
any translatable strings, this change generalizes the approach to
include generated sources in the translation process as well.

Author: hebasto

src/qt/CMakeLists.txt

@@ -324,6 +324,7 @@ else()
     COMMAND Qt5::lconvert -drop-translations -o ${CMAKE_CURRENT_SOURCE_DIR}/locale/bitcoin_en.xlf -i ${CMAKE_CURRENT_SOURCE_DIR}/locale/bitcoin_en.ts
     COMMAND ${SED_EXECUTABLE} -i.old -e "s|source-language=\"en\" target-language=\"en\"|source-language=\"en\"|" -e "/<target xml:space=\"preserve\"><\\/target>/d" ${CMAKE_CURRENT_SOURCE_DIR}/locale/bitcoin_en.xlf
     COMMAND ${CMAKE_COMMAND} -E rm ${CMAKE_CURRENT_SOURCE_DIR}/locale/bitcoin_en.xlf.old
+    DEPENDS ${translatable_sources}
     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/src
     VERBATIM
   )