Add MinGW-w64 Clang toolchain files

CMake/i686-w64-mingw32-clang.cmake

@@ -0,0 +1,13 @@
+# Define the environment for cross-compiling with 32-bit MinGW-w64 Clang
+SET(CMAKE_SYSTEM_NAME    Windows) # Target system name
+SET(CMAKE_SYSTEM_VERSION 1)
+SET(CMAKE_C_COMPILER     "i686-w64-mingw32-clang")
+SET(CMAKE_CXX_COMPILER   "i686-w64-mingw32-clang++")
+SET(CMAKE_RC_COMPILER    "i686-w64-mingw32-windres")
+SET(CMAKE_RANLIB         "i686-w64-mingw32-ranlib")
+
+# Configure the behaviour of the find commands
+SET(CMAKE_FIND_ROOT_PATH "/usr/i686-w64-mingw32")
+SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

CMake/i686-w64-mingw32.cmake

@@ -1,4 +1,4 @@
-# Define the environment for cross compiling from Linux to Win32
+# Define the environment for cross-compiling with 32-bit MinGW-w64 GCC
 SET(CMAKE_SYSTEM_NAME    Windows) # Target system name
 SET(CMAKE_SYSTEM_VERSION 1)
 SET(CMAKE_C_COMPILER     "i686-w64-mingw32-gcc")

CMake/x86_64-w64-mingw32-clang.cmake

@@ -0,0 +1,13 @@
+# Define the environment for cross-compiling with 64-bit MinGW-w64 Clang
+SET(CMAKE_SYSTEM_NAME    Windows) # Target system name
+SET(CMAKE_SYSTEM_VERSION 1)
+SET(CMAKE_C_COMPILER     "x86_64-w64-mingw32-clang")
+SET(CMAKE_CXX_COMPILER   "x86_64-w64-mingw32-clang++")
+SET(CMAKE_RC_COMPILER    "x86_64-w64-mingw32-windres")
+SET(CMAKE_RANLIB         "x86_64-w64-mingw32-ranlib")
+
+# Configure the behaviour of the find commands
+SET(CMAKE_FIND_ROOT_PATH "/usr/x86_64-w64-mingw32")
+SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

CMake/x86_64-w64-mingw32.cmake

@@ -1,4 +1,4 @@
-# Define the environment for cross compiling from Linux to Win32
+# Define the environment for cross-compiling with 64-bit MinGW-w64 GCC
 SET(CMAKE_SYSTEM_NAME    Windows) # Target system name
 SET(CMAKE_SYSTEM_VERSION 1)
 SET(CMAKE_C_COMPILER     "x86_64-w64-mingw32-gcc")