fix: Qt4 legacy for legacy packages.

etc/cmake/legacy/ArmarXQt4Qt5DualSupport.cmake

+
+macro(armarx_find_qt_base find_qt_base_libs find_qt_base_mode)
+    if (ArmarXGui_FOUND)
+        #qt 4 components are passed as QtCore
+        #qt 5 components are passed as Core
+        #setup some version dependent variables
+
+        set(find_qt_pkg_str "Qt5")          # the pkg is called by this name
+        set(find_qt_found_var "Qt5_FOUND")  # this var is set if qt was found
+        set(find_qt_component_pre "")       # this is the prefix for a qt component
+        set(find_qt_component_replace       # these libs are removed from the components
+        )
+        set(find_qt_component_replacement   # these libs are replacements for the removed components
+        )
+
+
+        #rewrite all names to correct version with/without Qt prefix
+        set(find_qt_components "")
+        foreach(find_qt_component ${find_qt_base_libs})
+            list(FIND find_qt_component_replace ${find_qt_component} find_qt_index)
+            #apply replacements
+            if(${find_qt_index} EQUAL -1)
+                #no replacement -< only fix prefix
+                string(REGEX REPLACE "^(Qt)+" "${find_qt_component_pre}" find_qt_component Qt${find_qt_component})
+                list(APPEND find_qt_components "${find_qt_component}")
+            else()
+                #apply replacement
+                list(GET find_qt_component_replacement ${find_qt_index} replacement)
+                string(REPLACE " " ";" replacement "${replacement}")
+                list(APPEND find_qt_components ${replacement})
+            endif()
+        endforeach(find_qt_component)
+
+        #find qt package + components
+        find_package(${find_qt_pkg_str} COMPONENTS ${find_qt_components} ${find_qt_base_mode})
+        set(QT_FOUND ${${find_qt_found_var}})
+        message(STATUS "find_package(${find_qt_pkg_str} COMPONENTS ${find_qt_components} QUIET) -> FOUND = ${QT_FOUND}")
+        #setup libraries variable
+        set(QT_LIBRARIES)
+        set(QT_INCLUDE_DIRS)
+        set(QT_DEFINITIONS)
+        set(QT_COMPILE_DEFINITIONS)
+        if(QT_FOUND)
+            foreach(var ${find_qt_components})
+                list(APPEND QT_LIBRARIES ${Qt5${var}_LIBRARIES})
+                list(APPEND QT_INCLUDE_DIRS ${Qt5${var}_INCLUDE_DIRS})
+                list(APPEND QT_DEFINITIONS ${Qt5${var}_DEFINITIONS})
+                list(APPEND QT_COMPILE_DEFINITIONS ${Qt5${var}_COMPILE_DEFINITIONS})
+            endforeach(var)
+
+            list(LENGTH QT_LIBRARIES           QT_LIBRARIES_LEN)
+            list(LENGTH QT_INCLUDE_DIRS        QT_INCLUDE_DIRS_LEN)
+            list(LENGTH QT_DEFINITIONS         QT_DEFINITIONS_LEN)
+            list(LENGTH QT_COMPILE_DEFINITIONS QT_COMPILE_DEFINITIONS_LEN)
+
+            if(NOT 0 EQUAL ${QT_LIBRARIES_LEN})
+                list(REMOVE_DUPLICATES QT_LIBRARIES)
+            endif()
+
+            if(NOT 0 EQUAL ${QT_INCLUDE_DIRS_LEN})
+                list(REMOVE_DUPLICATES QT_INCLUDE_DIRS)
+            endif()
+
+            if(NOT 0 EQUAL ${QT_DEFINITIONS_LEN})
+                list(REMOVE_DUPLICATES QT_DEFINITIONS)
+            endif()
+
+            if(NOT 0 EQUAL ${QT_COMPILE_DEFINITIONS_LEN})
+                list(REMOVE_DUPLICATES QT_COMPILE_DEFINITIONS)
+            endif()
+
+            list(REMOVE_DUPLICATES QT_LIBRARIES)
+            link_libraries(${QT_LIBRARIES})
+        endif()
+    endif()
+    armarx_build_if(QT_FOUND "Qt was not found")
+endmacro()
+
+macro(armarx_find_qt)
+    armarx_find_qt_base("${ARGN}" QUIET)
+endmacro()
+
+macro(armarx_qt_add_translation)
+    if (ArmarXGui_FOUND)
+        qt5_add_translation(${ARGN})
+    endif()
+endmacro()

etc/cmake/legacy/GuiCommands.cmake

-
+include(${ArmarXGui_CMAKE_DIR}/legacy/ArmarXQt4Qt5DualSupport.cmake)
 
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x040800)
 
@@ -10,7 +10,6 @@ find_package(Qt5OpenGL QUIET)
 find_package(Qt5Designer QUIET)
 find_package(Qt5Network QUIET)
 
-# include(${ArmarXGui_CMAKE_DIR}/ArmarXQt4Qt5DualSupport.cmake)
 #https://forum.qt.io/topic/81252/cmake-qt5_wrap_ui-issue
 # > Since QT5_WRAP_UI macro is delivered as part of Qt5Widget packacge it is necessery
 # > to make a call to find_package (Qt5Widget) before issuing QT5_WRAP_UI call.
@@ -51,7 +50,7 @@ function(armarx_gui_library PLUGIN_NAME SOURCES QT_MOC_HDRS QT_UIS QT_RESOURCES
     printtarget("${HEADERS}" "${SOURCES}" "${QT_RESOURCES}" "${COMPONENT_LIBS}")
 
     armarx_add_library("${PLUGIN_NAME}"
-         "${SOURCES}" 
+         "${SOURCES}"
          "${HEADERS}"
          "${COMPONENT_LIBS}"
     )
@@ -129,12 +128,12 @@ function(armarx_gui_plugin PLUGIN_NAME SOURCES QT_MOC_HDRS QT_UIS QT_RESOURCES C
         list(APPEND SOURCES "${outfile}.cpp")
         list(APPEND HEADERS "${outfile}.h")
     endif()
-    
-    armarx_gui_library( 
-        "${PLUGIN_NAME}" 
-        "${SOURCES}" 
-        "${HEADERS}" 
-        "" 
-        "${QT_RESOURCES}" 
+
+    armarx_gui_library(
+        "${PLUGIN_NAME}"
+        "${SOURCES}"
+        "${HEADERS}"
+        ""
+        "${QT_RESOURCES}"
         "${COMPONENT_LIBS}")
 endfunction()