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CMakeModules: Add MinGWClangCross 

Facilitates what programs we need for cross-compiling to Windows from
Linux using LLVM's compilers. Based on MinGWCross
This commit is contained in:
lat9nq 2022-05-29 03:32:16 -04:00
parent e56410b404
commit fef3d8acb5
1 changed files with 55 additions and 0 deletions
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55
CMakeModules/MinGWClangCross.cmake Normal file
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set(MINGW_PREFIX /usr/x86_64-w64-mingw32/)
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR x86_64)
set(CMAKE_FIND_ROOT_PATH ${MINGW_PREFIX})
set(SDL2_PATH ${MINGW_PREFIX})
set(MINGW_TOOL_PREFIX ${CMAKE_SYSTEM_PROCESSOR}-w64-mingw32-)
# Specify the cross compiler
set(CMAKE_C_COMPILER ${MINGW_TOOL_PREFIX}clang)
set(CMAKE_CXX_COMPILER ${MINGW_TOOL_PREFIX}clang++)
set(CMAKE_RC_COMPILER ${MINGW_TOOL_PREFIX}windres)
set(CMAKE_C_COMPILER_AR ${MINGW_TOOL_PREFIX}ar)
set(CMAKE_CXX_COMPILER_AR ${MINGW_TOOL_PREFIX}ar)
set(CMAKE_C_COMPILER_RANLIB ${MINGW_TOOL_PREFIX}ranlib)
set(CMAKE_CXX_COMPILER_RANLIB ${MINGW_TOOL_PREFIX}ranlib)
# Mingw tools
set(STRIP ${MINGW_TOOL_PREFIX}strip)
set(WINDRES ${MINGW_TOOL_PREFIX}windres)
set(ENV{PKG_CONFIG} ${MINGW_TOOL_PREFIX}pkg-config)
# ccache wrapper
option(USE_CCACHE "Use ccache for compilation" OFF)
if(USE_CCACHE)
find_program(CCACHE ccache)
if(CCACHE)
message(STATUS "Using ccache found in PATH")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE})
set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ${CCACHE})
else(CCACHE)
message(WARNING "USE_CCACHE enabled, but no ccache found")
endif(CCACHE)
endif(USE_CCACHE)
# Search for programs in the build host directories
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# Echo modified cmake vars to screen for debugging purposes
if(NOT DEFINED ENV{MINGW_DEBUG_INFO})
message("")
message("Custom cmake vars: (blank = system default)")
message("-----------------------------------------")
message("* CMAKE_C_COMPILER : ${CMAKE_C_COMPILER}")
message("* CMAKE_CXX_COMPILER : ${CMAKE_CXX_COMPILER}")
message("* CMAKE_RC_COMPILER : ${CMAKE_RC_COMPILER}")
message("* WINDRES : ${WINDRES}")
message("* ENV{PKG_CONFIG} : $ENV{PKG_CONFIG}")
message("* STRIP : ${STRIP}")
message("* USE_CCACHE : ${USE_CCACHE}")
message("")
# So that the debug info only appears once
set(ENV{MINGW_DEBUG_INFO} SHOWN)
endif()