Removed the `UPDATE_COMMAND ""` argument for external projects.

CMakeExternals/CTKData.cmake

@@ -46,7 +46,6 @@ if(NOT DEFINED CTKData_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     CONFIGURE_COMMAND ""
     BUILD_COMMAND ""
     INSTALL_COMMAND ""

CMakeExternals/DCMTK.cmake

@@ -52,7 +52,6 @@ if(NOT DEFINED DCMTK_DIR AND NOT ${CMAKE_PROJECT_NAME}_USE_SYSTEM_${proj})
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     BUILD_COMMAND ""
     CMAKE_ARGS
       -DDCMTK_INSTALL_BINDIR:STRING=bin/${CMAKE_CFG_INTDIR}

CMakeExternals/ITK.cmake

@@ -53,7 +53,6 @@ if(NOT DEFINED ITK_DIR AND NOT ${CMAKE_PROJECT_NAME}_USE_SYSTEM_${proj})
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     INSTALL_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}

CMakeExternals/Log4Qt.cmake

@@ -47,7 +47,6 @@ if(NOT DEFINED Log4Qt_DIR)
     PREFIX ${proj}${ep_suffix}
     ${location_args}
     INSTALL_COMMAND ""
-    UPDATE_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}
       -DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}

CMakeExternals/PythonQt.cmake

@@ -85,7 +85,6 @@ if(NOT DEFINED PYTHONQT_INSTALL_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     BUILD_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}

CMakeExternals/QtSOAP.cmake

@@ -46,7 +46,6 @@ if(NOT DEFINED QtSOAP_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     INSTALL_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}

CMakeExternals/QtTesting.cmake

@@ -56,7 +56,6 @@ if(NOT DEFINED QtTesting_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}
       -DBUILD_SHARED_LIBS:BOOL=ON

CMakeExternals/VTK.cmake

@@ -60,7 +60,6 @@ if(NOT DEFINED VTK_DIR AND NOT ${CMAKE_PROJECT_NAME}_USE_SYSTEM_${proj})
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     INSTALL_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}

CMakeExternals/ZMQ.cmake

@@ -46,7 +46,6 @@ if(NOT DEFINED ZMQ_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     INSTALL_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}

CMakeExternals/qRestAPI.cmake

@@ -46,7 +46,6 @@ if(NOT DEFINED ${proj}_DIR)
     BINARY_DIR ${proj}-build
     PREFIX ${proj}${ep_suffix}
     ${location_args}
-    UPDATE_COMMAND ""
     INSTALL_COMMAND ""
     CMAKE_CACHE_ARGS
       ${ep_common_cache_args}