diff --git a/Modules/CMakePlatformId.h.in b/Modules/CMakePlatformId.h.in
index 64a00b3..40668a3 100644
--- a/Modules/CMakePlatformId.h.in
+++ b/Modules/CMakePlatformId.h.in
@@ -87,6 +87,9 @@
 # elif defined(__WINDOWS__)
 #  define PLATFORM_ID "Windows3x"
 
+# elif defined(__VXWORKS__)
+#  define PLATFORM_ID "VxWorks"
+
 # else /* unknown platform */
 #  define PLATFORM_ID
 # endif
diff --git a/Modules/FindBISON.cmake b/Modules/FindBISON.cmake
index 6b5828e..1e1a5a3 100644
--- a/Modules/FindBISON.cmake
+++ b/Modules/FindBISON.cmake
@@ -82,7 +82,7 @@
   add_executable(Foo main.cpp ${BISON_MyParser_OUTPUTS})
 #]=======================================================================]
 
-find_program(BISON_EXECUTABLE NAMES bison win_bison DOC "path to the bison executable")
+find_program(BISON_EXECUTABLE NAMES bison win-bison win_bison DOC "path to the bison executable")
 mark_as_advanced(BISON_EXECUTABLE)
 
 if(BISON_EXECUTABLE)
diff --git a/Modules/FindCUDA.cmake b/Modules/FindCUDA.cmake
index e1af2d6..a93d4fd 100644
--- a/Modules/FindCUDA.cmake
+++ b/Modules/FindCUDA.cmake
@@ -357,7 +357,8 @@
   CUDA_nppicc_LIBRARY   -- NVIDIA Performance Primitives lib (image processing).
                            Only available for CUDA version 9.0.
   CUDA_nppicom_LIBRARY  -- NVIDIA Performance Primitives lib (image processing).
-                           Only available for CUDA version 9.0.
+                           Only available for CUDA version 9.0 - 10.2.
+                           Replaced by nvjpeg.
   CUDA_nppidei_LIBRARY  -- NVIDIA Performance Primitives lib (image processing).
                            Only available for CUDA version 9.0.
   CUDA_nppif_LIBRARY    -- NVIDIA Performance Primitives lib (image processing).
@@ -1002,7 +1003,9 @@
   find_cuda_helper_libs(nppc)
   find_cuda_helper_libs(nppial)
   find_cuda_helper_libs(nppicc)
-  find_cuda_helper_libs(nppicom)
+  if(CUDA_VERSION VERSION_LESS "11.0")
+    find_cuda_helper_libs(nppicom)
+  endif()
   find_cuda_helper_libs(nppidei)
   find_cuda_helper_libs(nppif)
   find_cuda_helper_libs(nppig)
diff --git a/Modules/FindFLEX.cmake b/Modules/FindFLEX.cmake
index 90e5f86..1384736 100644
--- a/Modules/FindFLEX.cmake
+++ b/Modules/FindFLEX.cmake
@@ -99,7 +99,7 @@
   ====================================================================
 #]=======================================================================]
 
-find_program(FLEX_EXECUTABLE NAMES flex win_flex DOC "path to the flex executable")
+find_program(FLEX_EXECUTABLE NAMES flex win-flex win_flex DOC "path to the flex executable")
 mark_as_advanced(FLEX_EXECUTABLE)
 
 find_library(FL_LIBRARY NAMES fl
diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
index ffe7337..f3c7db0 100644
--- a/Source/CMakeVersion.cmake
+++ b/Source/CMakeVersion.cmake
@@ -1,7 +1,7 @@
 # CMake version number components.
 set(CMake_VERSION_MAJOR 3)
 set(CMake_VERSION_MINOR 18)
-set(CMake_VERSION_PATCH 20200621)
+set(CMake_VERSION_PATCH 20200623)
 #set(CMake_VERSION_RC 0)
 set(CMake_VERSION_IS_DIRTY 0)
 
diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index 4545a8e..de1461a 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -713,9 +713,10 @@
     // "VERBOSE=1" to be added as a make variable which will change the
     // name of this special target.  This gives a make-time choice to
     // the user.
-    this->WriteMakeRule(makefileStream,
-                        "Suppress display of executed commands.",
-                        "$(VERBOSE).SILENT", no_depends, no_commands, false);
+    // Write directly to the stream since WriteMakeRule escapes '$'.
+    makefileStream << "#Suppress display of executed commands.\n"
+                      "$(VERBOSE).SILENT:\n"
+                      "\n";
   }
 
   // Work-around for makes that drop rules that have no dependencies
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 2b343d2..1c88cd5 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -349,7 +349,6 @@
   # add a bunch of standard build-and-test style tests
   ADD_TEST_MACRO(CommandLineTest CommandLineTest)
   ADD_TEST_MACRO(FindPackageTest FindPackageTest)
-  ADD_TEST_MACRO(FindModulesExecuteAll FindModulesExecuteAll)
   ADD_TEST_MACRO(StringFileTest StringFileTest)
   ADD_TEST_MACRO(TryCompile TryCompile)
   ADD_TEST_MACRO(SystemInformation SystemInformation)
diff --git a/Tests/FindModulesExecuteAll/CMakeLists.txt b/Tests/FindModulesExecuteAll/CMakeLists.txt
deleted file mode 100644
index 4893bb3..0000000
--- a/Tests/FindModulesExecuteAll/CMakeLists.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-# This file includes all FindXXX.cmake modules, so they are all executed.
-# As it is it doesn't test a lot.
-# It makes sure that the modules don't contain basic syntax errors.
-# It also makes sure that modules don't fail with an error if something
-# wasn't found but REQUIRED was not given.
-#
-# I guess more things could be added, like checking whether variables are
-# defined after running the modules (e.g. FOO_FOUND etc.).
-cmake_minimum_required(VERSION 2.8.4) # new enough for CMP0017
-project(FindModulesExecuteAll)
-
-file(GLOB all_modules "${CMAKE_CURRENT_SOURCE_DIR}/../../Modules/Find*cmake")
-
-foreach(module ${all_modules})
-  message(STATUS "module: ${module}")
-  include("${module}")
-
-  # get the "basename" of the package, so the existence of variables like
-  # FOO_FOUND could be tested later on, Alex
-  string(REGEX REPLACE ".+Find([^\\.]+)\\.cmake" "\\1" packageName "${module}")
-  string(TOUPPER "${packageName}" packageNameUpper)
-
-# disabled for now, since too many modules break:
-#  if(NOT DEFINED ${packageNameUpper}_FOUND)
-#    message(SEND_ERROR "${packageNameUpper}_FOUND not defined !")
-#  endif()
-
-endforeach()
-
-add_executable(FindModulesExecuteAll main.c)
diff --git a/Tests/FindModulesExecuteAll/main.c b/Tests/FindModulesExecuteAll/main.c
deleted file mode 100644
index f8b643a..0000000
--- a/Tests/FindModulesExecuteAll/main.c
+++ /dev/null
@@ -1,4 +0,0 @@
-int main()
-{
-  return 0;
-}