diff --git a/Modules/InstallRequiredSystemLibraries.cmake b/Modules/InstallRequiredSystemLibraries.cmake
index bded8080f6cea867567fd468af25c5193d7ea66e..67dfe8fb26a70924663df860455e2b22affc5b93 100644
--- a/Modules/InstallRequiredSystemLibraries.cmake
+++ b/Modules/InstallRequiredSystemLibraries.cmake
@@ -87,35 +87,38 @@ if(MSVC)
     # Find the runtime library redistribution directory.
     get_filename_component(msvc_install_dir
       "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\8.0;InstallDir]" ABSOLUTE)
-    find_path(MSVC80_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC80.CRT/Microsoft.VC80.CRT.manifest
+    if(DEFINED MSVC80_REDIST_DIR AND EXISTS "${MSVC80_REDIST_DIR}")
+      set(MSVC_REDIST_DIR "${MSVC80_REDIST_DIR}") # use old cache entry
+    endif()
+    find_path(MSVC_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC80.CRT/Microsoft.VC80.CRT.manifest
       PATHS
         "${msvc_install_dir}/../../VC/redist"
         "${base_dir}/VC/redist"
       )
-    mark_as_advanced(MSVC80_REDIST_DIR)
-    set(MSVC80_CRT_DIR "${MSVC80_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.CRT")
+    mark_as_advanced(MSVC_REDIST_DIR)
+    set(MSVC_CRT_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.CRT")
 
     # Install the manifest that allows DLLs to be loaded from the
     # directory containing the executable.
     if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
       set(__install__libs
-        "${MSVC80_CRT_DIR}/Microsoft.VC80.CRT.manifest"
-        "${MSVC80_CRT_DIR}/msvcm80.dll"
-        "${MSVC80_CRT_DIR}/msvcp80.dll"
-        "${MSVC80_CRT_DIR}/msvcr80.dll"
+        "${MSVC_CRT_DIR}/Microsoft.VC80.CRT.manifest"
+        "${MSVC_CRT_DIR}/msvcm80.dll"
+        "${MSVC_CRT_DIR}/msvcp80.dll"
+        "${MSVC_CRT_DIR}/msvcr80.dll"
         )
     else()
       set(__install__libs)
     endif()
 
     if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-      set(MSVC80_CRT_DIR
-        "${MSVC80_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC80.DebugCRT")
+      set(MSVC_CRT_DIR
+        "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC80.DebugCRT")
       set(__install__libs ${__install__libs}
-        "${MSVC80_CRT_DIR}/Microsoft.VC80.DebugCRT.manifest"
-        "${MSVC80_CRT_DIR}/msvcm80d.dll"
-        "${MSVC80_CRT_DIR}/msvcp80d.dll"
-        "${MSVC80_CRT_DIR}/msvcr80d.dll"
+        "${MSVC_CRT_DIR}/Microsoft.VC80.DebugCRT.manifest"
+        "${MSVC_CRT_DIR}/msvcm80d.dll"
+        "${MSVC_CRT_DIR}/msvcp80d.dll"
+        "${MSVC_CRT_DIR}/msvcr80d.dll"
         )
     endif()
   endif()
@@ -126,36 +129,39 @@ if(MSVC)
       "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\9.0;InstallDir]" ABSOLUTE)
     get_filename_component(msvc_express_install_dir
       "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\9.0;InstallDir]" ABSOLUTE)
-    find_path(MSVC90_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT/Microsoft.VC90.CRT.manifest
+    if(DEFINED MSVC90_REDIST_DIR AND EXISTS "${MSVC90_REDIST_DIR}")
+      set(MSVC_REDIST_DIR "${MSVC90_REDIST_DIR}") # use old cache entry
+    endif()
+    find_path(MSVC_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT/Microsoft.VC90.CRT.manifest
       PATHS
         "${msvc_install_dir}/../../VC/redist"
         "${msvc_express_install_dir}/../../VC/redist"
         "${base_dir}/VC/redist"
       )
-    mark_as_advanced(MSVC90_REDIST_DIR)
-    set(MSVC90_CRT_DIR "${MSVC90_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT")
+    mark_as_advanced(MSVC_REDIST_DIR)
+    set(MSVC_CRT_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT")
 
     # Install the manifest that allows DLLs to be loaded from the
     # directory containing the executable.
     if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
       set(__install__libs
-        "${MSVC90_CRT_DIR}/Microsoft.VC90.CRT.manifest"
-        "${MSVC90_CRT_DIR}/msvcm90.dll"
-        "${MSVC90_CRT_DIR}/msvcp90.dll"
-        "${MSVC90_CRT_DIR}/msvcr90.dll"
+        "${MSVC_CRT_DIR}/Microsoft.VC90.CRT.manifest"
+        "${MSVC_CRT_DIR}/msvcm90.dll"
+        "${MSVC_CRT_DIR}/msvcp90.dll"
+        "${MSVC_CRT_DIR}/msvcr90.dll"
         )
     else()
       set(__install__libs)
     endif()
 
     if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-      set(MSVC90_CRT_DIR
-        "${MSVC90_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC90.DebugCRT")
+      set(MSVC_CRT_DIR
+        "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC90.DebugCRT")
       set(__install__libs ${__install__libs}
-        "${MSVC90_CRT_DIR}/Microsoft.VC90.DebugCRT.manifest"
-        "${MSVC90_CRT_DIR}/msvcm90d.dll"
-        "${MSVC90_CRT_DIR}/msvcp90d.dll"
-        "${MSVC90_CRT_DIR}/msvcr90d.dll"
+        "${MSVC_CRT_DIR}/Microsoft.VC90.DebugCRT.manifest"
+        "${MSVC_CRT_DIR}/msvcm90d.dll"
+        "${MSVC_CRT_DIR}/msvcp90d.dll"
+        "${MSVC_CRT_DIR}/msvcr90d.dll"
         )
     endif()
   endif()
@@ -179,45 +185,48 @@ if(MSVC)
     get_filename_component(msvc_install_dir
       "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\${v}.0;InstallDir]" ABSOLUTE)
     set(programfilesx86 "ProgramFiles(x86)")
-    find_path(MSVC${v}_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.CRT
+    if(DEFINED MSVC${v}_REDIST_DIR AND EXISTS "${MSVC${v}_REDIST_DIR}")
+      set(MSVC_REDIST_DIR "${MSVC${v}_REDIST_DIR}") # use old cache entry
+    endif()
+    find_path(MSVC_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.CRT
       PATHS
         "${msvc_install_dir}/../../VC/redist"
         "${base_dir}/VC/redist"
         "$ENV{ProgramFiles}/Microsoft Visual Studio ${v}.0/VC/redist"
         "$ENV{${programfilesx86}}/Microsoft Visual Studio ${v}.0/VC/redist"
       )
-    mark_as_advanced(MSVC${v}_REDIST_DIR)
-    set(MSVC${v}_CRT_DIR "${MSVC${v}_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.CRT")
+    mark_as_advanced(MSVC_REDIST_DIR)
+    set(MSVC_CRT_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.CRT")
 
     if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
       set(__install__libs
-        "${MSVC${v}_CRT_DIR}/msvcp${v}0.dll"
+        "${MSVC_CRT_DIR}/msvcp${v}0.dll"
         )
       if(NOT v VERSION_LESS 14)
         list(APPEND __install__libs
-            "${MSVC${v}_CRT_DIR}/vcruntime${v}0.dll"
-            "${MSVC${v}_CRT_DIR}/concrt${v}0.dll"
+            "${MSVC_CRT_DIR}/vcruntime${v}0.dll"
+            "${MSVC_CRT_DIR}/concrt${v}0.dll"
             )
       else()
-        list(APPEND __install__libs "${MSVC${v}_CRT_DIR}/msvcr${v}0.dll")
+        list(APPEND __install__libs "${MSVC_CRT_DIR}/msvcr${v}0.dll")
       endif()
     else()
       set(__install__libs)
     endif()
 
     if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-      set(MSVC${v}_CRT_DIR
-        "${MSVC${v}_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.DebugCRT")
+      set(MSVC_CRT_DIR
+        "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.DebugCRT")
       set(__install__libs ${__install__libs}
-        "${MSVC${v}_CRT_DIR}/msvcp${v}0d.dll"
+        "${MSVC_CRT_DIR}/msvcp${v}0d.dll"
         )
       if(NOT v VERSION_LESS 14)
         list(APPEND __install__libs
-            "${MSVC${v}_CRT_DIR}/vcruntime${v}0d.dll"
-            "${MSVC${v}_CRT_DIR}/concrt${v}0d.dll"
+            "${MSVC_CRT_DIR}/vcruntime${v}0d.dll"
+            "${MSVC_CRT_DIR}/concrt${v}0d.dll"
             )
       else()
-        list(APPEND __install__libs "${MSVC${v}_CRT_DIR}/msvcr${v}0d.dll")
+        list(APPEND __install__libs "${MSVC_CRT_DIR}/msvcr${v}0d.dll")
       endif()
     endif()
 
@@ -261,89 +270,89 @@ if(MSVC)
 
     if(MSVC_VERSION EQUAL 1400)
       if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-        set(MSVC80_MFC_DIR
-          "${MSVC80_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC80.DebugMFC")
+        set(MSVC_MFC_DIR
+          "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC80.DebugMFC")
         set(__install__libs ${__install__libs}
-          "${MSVC80_MFC_DIR}/Microsoft.VC80.DebugMFC.manifest"
-          "${MSVC80_MFC_DIR}/mfc80d.dll"
-          "${MSVC80_MFC_DIR}/mfc80ud.dll"
-          "${MSVC80_MFC_DIR}/mfcm80d.dll"
-          "${MSVC80_MFC_DIR}/mfcm80ud.dll"
+          "${MSVC_MFC_DIR}/Microsoft.VC80.DebugMFC.manifest"
+          "${MSVC_MFC_DIR}/mfc80d.dll"
+          "${MSVC_MFC_DIR}/mfc80ud.dll"
+          "${MSVC_MFC_DIR}/mfcm80d.dll"
+          "${MSVC_MFC_DIR}/mfcm80ud.dll"
           )
       endif()
 
-      set(MSVC80_MFC_DIR "${MSVC80_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.MFC")
+      set(MSVC_MFC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.MFC")
       # Install the manifest that allows DLLs to be loaded from the
       # directory containing the executable.
       if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
         set(__install__libs ${__install__libs}
-          "${MSVC80_MFC_DIR}/Microsoft.VC80.MFC.manifest"
-          "${MSVC80_MFC_DIR}/mfc80.dll"
-          "${MSVC80_MFC_DIR}/mfc80u.dll"
-          "${MSVC80_MFC_DIR}/mfcm80.dll"
-          "${MSVC80_MFC_DIR}/mfcm80u.dll"
+          "${MSVC_MFC_DIR}/Microsoft.VC80.MFC.manifest"
+          "${MSVC_MFC_DIR}/mfc80.dll"
+          "${MSVC_MFC_DIR}/mfc80u.dll"
+          "${MSVC_MFC_DIR}/mfcm80.dll"
+          "${MSVC_MFC_DIR}/mfcm80u.dll"
           )
       endif()
 
       # include the language dll's for vs8 as well as the actuall dll's
-      set(MSVC80_MFCLOC_DIR "${MSVC80_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.MFCLOC")
+      set(MSVC_MFCLOC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC80.MFCLOC")
       # Install the manifest that allows DLLs to be loaded from the
       # directory containing the executable.
       set(__install__libs ${__install__libs}
-        "${MSVC80_MFCLOC_DIR}/Microsoft.VC80.MFCLOC.manifest"
-        "${MSVC80_MFCLOC_DIR}/mfc80chs.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80cht.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80enu.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80esp.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80deu.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80fra.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80ita.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80jpn.dll"
-        "${MSVC80_MFCLOC_DIR}/mfc80kor.dll"
+        "${MSVC_MFCLOC_DIR}/Microsoft.VC80.MFCLOC.manifest"
+        "${MSVC_MFCLOC_DIR}/mfc80chs.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80cht.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80enu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80esp.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80deu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80fra.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80ita.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80jpn.dll"
+        "${MSVC_MFCLOC_DIR}/mfc80kor.dll"
         )
     endif()
 
     if(MSVC_VERSION EQUAL 1500)
       if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-        set(MSVC90_MFC_DIR
-          "${MSVC90_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC90.DebugMFC")
+        set(MSVC_MFC_DIR
+          "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC90.DebugMFC")
         set(__install__libs ${__install__libs}
-          "${MSVC90_MFC_DIR}/Microsoft.VC90.DebugMFC.manifest"
-          "${MSVC90_MFC_DIR}/mfc90d.dll"
-          "${MSVC90_MFC_DIR}/mfc90ud.dll"
-          "${MSVC90_MFC_DIR}/mfcm90d.dll"
-          "${MSVC90_MFC_DIR}/mfcm90ud.dll"
+          "${MSVC_MFC_DIR}/Microsoft.VC90.DebugMFC.manifest"
+          "${MSVC_MFC_DIR}/mfc90d.dll"
+          "${MSVC_MFC_DIR}/mfc90ud.dll"
+          "${MSVC_MFC_DIR}/mfcm90d.dll"
+          "${MSVC_MFC_DIR}/mfcm90ud.dll"
           )
       endif()
 
-      set(MSVC90_MFC_DIR "${MSVC90_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.MFC")
+      set(MSVC_MFC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.MFC")
       # Install the manifest that allows DLLs to be loaded from the
       # directory containing the executable.
       if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
         set(__install__libs ${__install__libs}
-          "${MSVC90_MFC_DIR}/Microsoft.VC90.MFC.manifest"
-          "${MSVC90_MFC_DIR}/mfc90.dll"
-          "${MSVC90_MFC_DIR}/mfc90u.dll"
-          "${MSVC90_MFC_DIR}/mfcm90.dll"
-          "${MSVC90_MFC_DIR}/mfcm90u.dll"
+          "${MSVC_MFC_DIR}/Microsoft.VC90.MFC.manifest"
+          "${MSVC_MFC_DIR}/mfc90.dll"
+          "${MSVC_MFC_DIR}/mfc90u.dll"
+          "${MSVC_MFC_DIR}/mfcm90.dll"
+          "${MSVC_MFC_DIR}/mfcm90u.dll"
           )
       endif()
 
       # include the language dll's for vs9 as well as the actuall dll's
-      set(MSVC90_MFCLOC_DIR "${MSVC90_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.MFCLOC")
+      set(MSVC_MFCLOC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.MFCLOC")
       # Install the manifest that allows DLLs to be loaded from the
       # directory containing the executable.
       set(__install__libs ${__install__libs}
-        "${MSVC90_MFCLOC_DIR}/Microsoft.VC90.MFCLOC.manifest"
-        "${MSVC90_MFCLOC_DIR}/mfc90chs.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90cht.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90enu.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90esp.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90deu.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90fra.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90ita.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90jpn.dll"
-        "${MSVC90_MFCLOC_DIR}/mfc90kor.dll"
+        "${MSVC_MFCLOC_DIR}/Microsoft.VC90.MFCLOC.manifest"
+        "${MSVC_MFCLOC_DIR}/mfc90chs.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90cht.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90enu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90esp.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90deu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90fra.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90ita.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90jpn.dll"
+        "${MSVC_MFCLOC_DIR}/mfc90kor.dll"
         )
     endif()
 
@@ -367,47 +376,47 @@ if(MSVC)
       # whether they are available and exclude them if they are not.
 
       if(CMAKE_INSTALL_DEBUG_LIBRARIES)
-        set(MSVC${v}_MFC_DIR
-          "${MSVC${v}_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.DebugMFC")
+        set(MSVC_MFC_DIR
+          "${MSVC_REDIST_DIR}/Debug_NonRedist/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.DebugMFC")
         set(__install__libs ${__install__libs}
-          "${MSVC${v}_MFC_DIR}/mfc${v}0ud.dll"
-          "${MSVC${v}_MFC_DIR}/mfcm${v}0ud.dll"
+          "${MSVC_MFC_DIR}/mfc${v}0ud.dll"
+          "${MSVC_MFC_DIR}/mfcm${v}0ud.dll"
           )
-        if("${v}" LESS 12 OR EXISTS "${MSVC${v}_MFC_DIR}/mfc${v}0d.dll")
+        if("${v}" LESS 12 OR EXISTS "${MSVC_MFC_DIR}/mfc${v}0d.dll")
           set(__install__libs ${__install__libs}
-            "${MSVC${v}_MFC_DIR}/mfc${v}0d.dll"
-            "${MSVC${v}_MFC_DIR}/mfcm${v}0d.dll"
+            "${MSVC_MFC_DIR}/mfc${v}0d.dll"
+            "${MSVC_MFC_DIR}/mfcm${v}0d.dll"
           )
         endif()
       endif()
 
-      set(MSVC${v}_MFC_DIR "${MSVC${v}_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.MFC")
+      set(MSVC_MFC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.MFC")
       if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
         set(__install__libs ${__install__libs}
-          "${MSVC${v}_MFC_DIR}/mfc${v}0u.dll"
-          "${MSVC${v}_MFC_DIR}/mfcm${v}0u.dll"
+          "${MSVC_MFC_DIR}/mfc${v}0u.dll"
+          "${MSVC_MFC_DIR}/mfcm${v}0u.dll"
           )
-        if("${v}" LESS 12 OR EXISTS "${MSVC${v}_MFC_DIR}/mfc${v}0.dll")
+        if("${v}" LESS 12 OR EXISTS "${MSVC_MFC_DIR}/mfc${v}0.dll")
           set(__install__libs ${__install__libs}
-            "${MSVC${v}_MFC_DIR}/mfc${v}0.dll"
-            "${MSVC${v}_MFC_DIR}/mfcm${v}0.dll"
+            "${MSVC_MFC_DIR}/mfc${v}0.dll"
+            "${MSVC_MFC_DIR}/mfcm${v}0.dll"
           )
         endif()
       endif()
 
       # include the language dll's as well as the actuall dll's
-      set(MSVC${v}_MFCLOC_DIR "${MSVC${v}_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.MFCLOC")
+      set(MSVC_MFCLOC_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}0.MFCLOC")
       set(__install__libs ${__install__libs}
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0chs.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0cht.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0deu.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0enu.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0esn.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0fra.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0ita.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0jpn.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0kor.dll"
-        "${MSVC${v}_MFCLOC_DIR}/mfc${v}0rus.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0chs.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0cht.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0deu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0enu.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0esn.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0fra.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0ita.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0jpn.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0kor.dll"
+        "${MSVC_MFCLOC_DIR}/mfc${v}0rus.dll"
         )
     endif()
   endif()
@@ -416,36 +425,28 @@ if(MSVC)
   # Furthermore, there is no debug version of this
   if(CMAKE_INSTALL_OPENMP_LIBRARIES)
     if(MSVC_VERSION EQUAL 1900 OR MSVC_VERSION EQUAL 1910)
-      set(_MSOMP_VAR_VER 14)
       set(_MSOMP_VERSION 140)
     elseif(MSVC_VERSION EQUAL 1800)
-      set(_MSOMP_VAR_VER 12)
       set(_MSOMP_VERSION 120)
     elseif(MSVC_VERSION EQUAL 1700)
-      set(_MSOMP_VAR_VER 11)
       set(_MSOMP_VERSION 110)
     elseif(MSVC_VERSION EQUAL 1600)
-      set(_MSOMP_VAR_VER 10)
       set(_MSOMP_VERSION 100)
     elseif(MSVC_VERSION EQUAL 1500)
-      set(_MSOMP_VAR_VER 90)
       set(_MSOMP_VERSION 90)
     elseif(MSVC_VERSION EQUAL 1400)
-      set(_MSOMP_VAR_VER 80)
       set(_MSOMP_VERSION 80)
     else()
-      set(_MSOMP_VAR_VER "")
       set(_MSOMP_VERSION "")
     endif()
 
     if(_MSOMP_VERSION)
-      set(va "${_MSOMP_VAR_VER}")
-      set(vb "${_MSOMP_VERSION}")
-      set(MSVC${va}_OPENMP_DIR "${MSVC${va}_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${vb}.OPENMP")
+      set(v "${_MSOMP_VERSION}")
+      set(MSVC_OPENMP_DIR "${MSVC_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC${v}.OPENMP")
 
       if(NOT CMAKE_INSTALL_DEBUG_LIBRARIES_ONLY)
         set(__install__libs ${__install__libs}
-          "${MSVC${va}_OPENMP_DIR}/vcomp${vb}.dll")
+          "${MSVC_OPENMP_DIR}/vcomp${v}.dll")
       endif()
     endif()
   endif()