Description: _soversion sharedlib
--- a/CMake/vtkModuleMacros.cmake
+++ b/CMake/vtkModuleMacros.cmake
@@ -417,8 +417,8 @@
 function(vtk_target_name _name)
   get_property(_type TARGET ${_name} PROPERTY TYPE)
   if(NOT "${_type}" STREQUAL EXECUTABLE AND NOT VTK_JAVA_INSTALL)
-    set_property(TARGET ${_name} PROPERTY VERSION 1)
-    set_property(TARGET ${_name} PROPERTY SOVERSION 1)
+    set_property(TARGET ${_name} PROPERTY VERSION ${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}.${VTK_BUILD_VERSION})
+    set_property(TARGET ${_name} PROPERTY SOVERSION ${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION})
   endif()
   if("${_name}" MATCHES "^[Vv][Tt][Kk]")
     set(_vtk "")
--- a/Rendering/Tk/CMakeLists.txt
+++ b/Rendering/Tk/CMakeLists.txt
@@ -118,7 +118,7 @@
     vtk_target_install(vtkRenderingPythonTkWidgets)
 
     set_property(TARGET vtkRenderingPythonTkWidgets PROPERTY OUTPUT_NAME
-         vtkRenderingPythonTkWidgets-${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION})
+         vtkRenderingPythonTkWidgets)
 
     set(Module_PYTHON_LIBS ${VTK_TK_LIBRARIES})
     if(VTK_USE_X)