Patch for CMake (v3.20.5) and PDCurses (3.9) for cross-compile with mingw64

cmake_v3.20.5_pdcurses.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a2fcf2e372..ae32ce17b8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -656,25 +656,12 @@ macro (CMAKE_BUILD_UTILITIES)
   endif()
 
   #---------------------------------------------------------------------
-  # Use curses?
-  if (UNIX)
-    if(NOT DEFINED BUILD_CursesDialog)
-      include(${CMake_SOURCE_DIR}/Source/Checks/Curses.cmake)
-      option(BUILD_CursesDialog "Build the CMake Curses Dialog ccmake" "${CMakeCheckCurses_COMPILED}")
-    endif()
-  else ()
-    set(BUILD_CursesDialog 0)
-  endif ()
+  set(CURSES_INCLUDE_PATH "/usr/x86_64-w64-mingw32/include/pdcurses")
+  set(CURSES_LIBRARY "/usr/x86_64-w64-mingw32/lib/pdcurses.a")
+
+  set(BUILD_CursesDialog 1)
   if(BUILD_CursesDialog)
     set(CURSES_NEED_NCURSES TRUE)
-    find_package(Curses)
-    if(NOT CURSES_FOUND)
-      message(WARNING
-        "'ccmake' will not be built because Curses was not found.\n"
-        "Turn off BUILD_CursesDialog to suppress this message."
-        )
-      set(BUILD_CursesDialog 0)
-    endif()
   endif()
   if(BUILD_CursesDialog)
     if(NOT CMAKE_USE_SYSTEM_FORM)
diff --git a/Source/Checks/Curses/CMakeLists.txt b/Source/Checks/Curses/CMakeLists.txt
index 17318a33b2..b31931d698 100644
--- a/Source/Checks/Curses/CMakeLists.txt
+++ b/Source/Checks/Curses/CMakeLists.txt
@@ -5,6 +5,9 @@ endif()
 project(CheckCurses C)
 
 set(CURSES_NEED_NCURSES TRUE)
+set(CURSES_INCLUDE_PATH "/usr/x86_64-w64-mingw32/include/pdcurses")
+set(CURSES_LIBRARY "/usr/x86_64-w64-mingw32/lib/pdcurses.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>

pdcurses_mingw64.patch

diff --git a/curses.h b/curses.h
index b5b91fda..0978a286 100644
--- a/curses.h
+++ b/curses.h
@@ -621,10 +621,10 @@ indicator.
 #define KEY_CODE_YES  0x100  /* If get_wch() gives a key code */
 
 #define KEY_BREAK     0x101  /* Not on PC KBD */
-#define KEY_DOWN      0x102  /* Down arrow key */
-#define KEY_UP        0x103  /* Up arrow key */
-#define KEY_LEFT      0x104  /* Left arrow key */
-#define KEY_RIGHT     0x105  /* Right arrow key */
+#define KEY_DOWN      0x1C8  /* Down arrow key */
+#define KEY_UP        0x1C2  /* Up arrow key */
+#define KEY_LEFT      0x1C4  /* Left arrow key */
+#define KEY_RIGHT     0x1C6  /* Right arrow key */
 #define KEY_HOME      0x106  /* home key */
 #define KEY_BACKSPACE 0x107  /* not on pc */
 #define KEY_F0        0x108  /* function keys; 64 reserved */
diff --git a/wincon/Makefile b/wincon/Makefile
index b7d7c90b..e0b22af9 100644
--- a/wincon/Makefile
+++ b/wincon/Makefile
@@ -26,11 +26,11 @@ include $(common)/libobjs.mif
 
 PDCURSES_WIN_H	= $(osdir)/pdcwin.h
 
-CC		= gcc
-AR		= ar
-STRIP		= strip
-LINK		= gcc
-WINDRES		= windres
+CC		= /usr/bin/x86_64-w64-mingw32-gcc
+AR		= /usr/bin/x86_64-w64-mingw32-ar
+STRIP		= /usr/bin/x86_64-w64-mingw32-strip
+LINK		= /usr/bin/x86_64-w64-mingw32-gcc
+WINDRES		= /usr/bin/x86_64-w64-mingw32-windres
 
 ifeq ($(DEBUG),Y)
 	CFLAGS  = -g -Wall -DPDCDEBUG