# This toolchain configuration file can be used cross-compile from linux to windows
# Ref.: https://github.com/glfw/glfw/blob/master/CMake/x86_64-w64-mingw32-clang.cmake

MESSAGE("Cross-Compiling with toolchain file: ${CMAKE_TOOLCHAIN_FILE}")

# llvm-mingw-x86_64 is expected to be avilable under this directory
set(MINGW_DIRECTORY /llvm-mingw-x86_64)

# Define the environment for cross-compiling with 64-bit MinGW-w64 Clang
set(CMAKE_SYSTEM_NAME    Windows)
SET(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_C_COMPILER     ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-clang)
set(CMAKE_CXX_COMPILER   ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-clang++)
set(CMAKE_RC_COMPILER    ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-windres)
set(CMAKE_RANLIB         ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-ranlib)
set(CMAKE_AR             ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-ar)
set(CMAKE_STRIP          ${MINGW_DIRECTORY}/bin/x86_64-w64-mingw32-strip)

# Configure the behaviour of the find commands
set(CMAKE_FIND_ROOT_PATH
	${MINGW_DIRECTORY}/x86_64-w64-mingw32
	${MINGW_DIRECTORY}
	/spacegame_deps)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

# Note: For windows we supply all libraries in use directly through mingw => Full static linking!
set(CMAKE_CXX_FLAGS_INIT           "-stdlib=libc++")
set(CMAKE_EXE_LINKER_FLAGS_INIT    "-fuse-ld=lld -static")
set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -static")
set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -static")
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE    TRUE)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_MINSIZEREL TRUE)