Patch to compile CMake from source for specific version v3.20.5 via mingw64 to work with pre-built mingw64 of ncurses

cmake_mingw64_v3.20.5.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a2fcf2e372..4b78f9ee01 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -656,6 +656,9 @@ macro (CMAKE_BUILD_UTILITIES)
   endif()
 
   #---------------------------------------------------------------------
+  set(CURSES_INCLUDE_PATH "/usr/x86_64-w64-mingw32/include/ncursesw")
+  set(CURSES_LIBRARY "/usr/x86_64-w64-mingw32/lib/libncursesw.a;/usr/x86_64-w64-mingw32/lib/libformw.a")
+
   # Use curses?
   if (UNIX)
     if(NOT DEFINED BUILD_CursesDialog)
@@ -665,8 +668,14 @@ macro (CMAKE_BUILD_UTILITIES)
   else ()
     set(BUILD_CursesDialog 0)
   endif ()
+
+  set(BUILD_CursesDialog 1)
   if(BUILD_CursesDialog)
     set(CURSES_NEED_NCURSES TRUE)
+    set(CURSES_NEED_WIDE TRUE)	# need wide as we have only wide-version of library
+    set(CURSES_INCLUDE_PATH "/usr/x86_64-w64-mingw32/include/ncursesw")
+    set(CURSES_LIBRARY "/usr/x86_64-w64-mingw32/lib/libncursesw.dll.a;/usr/x86_64-w64-mingw32/lib/libformw.dll.a")
+
     find_package(Curses)
     if(NOT CURSES_FOUND)
       message(WARNING
diff --git a/Source/Checks/Curses/CMakeLists.txt b/Source/Checks/Curses/CMakeLists.txt
index 17318a33b2..4fffa5bba9 100644
--- a/Source/Checks/Curses/CMakeLists.txt
+++ b/Source/Checks/Curses/CMakeLists.txt
@@ -5,6 +5,10 @@ endif()
 project(CheckCurses C)
 
 set(CURSES_NEED_NCURSES TRUE)
+set(CURSES_NEED_WIDE TRUE)	# set to true as we only have wide-version of library
+set(CURSES_INCLUDE_PATH "/usr/x86_64-w64-mingw32/include/ncursesw")
+set(CURSES_LIBRARY "/usr/x86_64-w64-mingw32/lib/libncursesw.dll.a;/usr/x86_64-w64-mingw32/lib/libformw.dll.a")
+
 find_package(Curses)
 if(NOT CURSES_FOUND)
   return()
diff --git a/Source/CursesDialog/ccmake.cxx b/Source/CursesDialog/ccmake.cxx
index 85e256b8bc..dbfec618e2 100644
--- a/Source/CursesDialog/ccmake.cxx
+++ b/Source/CursesDialog/ccmake.cxx
@@ -74,7 +74,7 @@ void onsig(int /*unused*/)
     cmCursesForm::CurrentForm->Render(1, 1, x, y);
     cmCursesForm::CurrentForm->UpdateStatusBar();
   }
-  signal(SIGWINCH, onsig);
+  signal(28, onsig);
 }
 }
 
@@ -142,7 +142,7 @@ int main(int argc, char const* const* argv)
   keypad(stdscr, true); /* Use key symbols as KEY_DOWN */
   cmCursesColor::InitColors();
 
-  signal(SIGWINCH, onsig);
+  signal(28, onsig);
 
   int x;
   int y;
diff --git a/Source/cmGlobalVisualStudioGenerator.cxx b/Source/cmGlobalVisualStudioGenerator.cxx
index c23ee94511..a727ac3268 100644
--- a/Source/cmGlobalVisualStudioGenerator.cxx
+++ b/Source/cmGlobalVisualStudioGenerator.cxx
@@ -3,7 +3,7 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmGlobalVisualStudioGenerator.h"
 
-#include <future>
+#include <mingw-std-threads/mingw.future.h>
 #include <iostream>
 
 #include <cm/iterator>
diff --git a/Source/cmQtAutoGenerator.h b/Source/cmQtAutoGenerator.h
index 5c3a8adccb..d0d9d3e180 100644
--- a/Source/cmQtAutoGenerator.h
+++ b/Source/cmQtAutoGenerator.h
@@ -5,7 +5,7 @@
 #include "cmConfigure.h" // IWYU pragma: keep
 
 #include <istream>
-#include <mutex>
+#include <mingw-std-threads/mingw.mutex.h>
 #include <string>
 #include <unordered_set>
 #include <vector>
diff --git a/Source/cmQtAutoMocUic.cxx b/Source/cmQtAutoMocUic.cxx
index f5831628d3..c8204a1610 100644
--- a/Source/cmQtAutoMocUic.cxx
+++ b/Source/cmQtAutoMocUic.cxx
@@ -6,7 +6,7 @@
 #include <atomic>
 #include <cstddef>
 #include <map>
-#include <mutex>
+#include <mingw-std-threads/mingw.mutex.h>
 #include <set>
 #include <string>
 #include <unordered_map>
diff --git a/Source/cmUVHandlePtr.cxx b/Source/cmUVHandlePtr.cxx
index 8ea19423da..4f2346ad53 100644
--- a/Source/cmUVHandlePtr.cxx
+++ b/Source/cmUVHandlePtr.cxx
@@ -5,7 +5,7 @@
 
 #include <cassert>
 #include <cstdlib>
-#include <mutex>
+#include <mingw-std-threads/mingw.mutex.h>
 
 #include <cm3p/uv.h>
 
diff --git a/Source/cmWorkerPool.cxx b/Source/cmWorkerPool.cxx
index 1d15c27adb..c02a4bdb6e 100644
--- a/Source/cmWorkerPool.cxx
+++ b/Source/cmWorkerPool.cxx
@@ -4,12 +4,12 @@
 
 #include <algorithm>
 #include <array>
-#include <condition_variable>
+#include <mingw-std-threads/mingw.condition_variable.h>
 #include <cstddef>
 #include <deque>
 #include <functional>
-#include <mutex>
-#include <thread>
+#include <mingw-std-threads/mingw.mutex.h>
+#include <mingw-std-threads/mingw.thread.h>
 
 #include <cm/memory>
 
diff --git a/Tests/CMakeLib/testUVProcessChainHelper.cxx b/Tests/CMakeLib/testUVProcessChainHelper.cxx
index 9c258342eb..93431d8d91 100644
--- a/Tests/CMakeLib/testUVProcessChainHelper.cxx
+++ b/Tests/CMakeLib/testUVProcessChainHelper.cxx
@@ -5,7 +5,7 @@
 #include <set>
 #include <sstream>
 #include <string>
-#include <thread>
+#include <mingw-std-threads/mingw.thread.h>
 
 std::string getStdin()
 {
diff --git a/Tests/CMakeLib/testUVRAII.cxx b/Tests/CMakeLib/testUVRAII.cxx
index 0607f449fa..c721814e2c 100644
--- a/Tests/CMakeLib/testUVRAII.cxx
+++ b/Tests/CMakeLib/testUVRAII.cxx
@@ -1,6 +1,6 @@
 #include <chrono>
 #include <iostream>
-#include <thread>
+#include <mingw-std-threads/mingw.thread.h>
 #include <utility>
 
 #include <cm3p/uv.h>
diff --git a/Tests/RunCMake/CTestResourceAllocation/ctresalloc.cxx b/Tests/RunCMake/CTestResourceAllocation/ctresalloc.cxx
index daf8a2d808..150148efa8 100644
--- a/Tests/RunCMake/CTestResourceAllocation/ctresalloc.cxx
+++ b/Tests/RunCMake/CTestResourceAllocation/ctresalloc.cxx
@@ -6,7 +6,7 @@
 #include <map>
 #include <set>
 #include <string>
-#include <thread>
+#include <mingw-std-threads/mingw.thread.h>
 #include <utility>
 #include <vector>
 
diff --git a/Utilities/std/cm/shared_mutex b/Utilities/std/cm/shared_mutex
index a1204fa557..f13c99a75e 100644
--- a/Utilities/std/cm/shared_mutex
+++ b/Utilities/std/cm/shared_mutex
@@ -13,7 +13,7 @@
 #endif
 
 #if defined(CMake_HAVE_CXX_SHARED_LOCK)
-#  include <shared_mutex> // IWYU pragma: export
+#  include <mingw-std-threads/mingw.shared_mutex.h> // IWYU pragma: export
 #endif
 #if !defined(CMake_HAVE_CXX_SHARED_MUTEX)
 #  include <cm3p/uv.h>