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fix linux toolchain always failing to find msvc toolchain and hardcoding /opt/msvc

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halogen 2026-03-04 23:04:36 -05:00
parent da6c15e6a9
commit 8b079f45e9
1 changed files with 18 additions and 27 deletions
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45
cmake/LinuxCrosscompile.cmake
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@ -7,44 +7,35 @@ set(CMAKE_LINKER lld-link)
set(CMAKE_C_COMPILER_FRONTEND_VARIANT MSVC)
set(CMAKE_CXX_COMPILER_FRONTEND_VARIANT MSVC)
# rm: locate winsysroot via the msbuild.exe path
find_program(_msbuild_exe msbuild)
if(_msbuild_exe)
get_filename_component(_msbuild_bin ${_msbuild_exe} DIRECTORY) # .../bin/x64
get_filename_component(_candidate "${_msbuild_bin}/.." ABSOLUTE) # .../bin
if(NOT IS_DIRECTORY "${_candidate}/vc")
get_filename_component(_candidate "${_candidate}/.." ABSOLUTE) # .../<root>
endif()
set(MSVC_WINSYSROOT ${_candidate})
else()
# rm: assume /opt/msvc as a fallback (which is usually the default path)
set(MSVC_WINSYSROOT /opt/msvc)
# TODO add check that WINDOWS_SDK_PATH is real
set(WINDOWS_SDK_PATH "" CACHE PATH "Path to Windows SDK root")
set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES WINDOWS_SDK_PATH) # You have no idea how much suffering I went through to get this solution. I hate this build system with all my
message(STATUS "WINDOWS_SDK_PATH=${WINDOWS_SDK_PATH}")
if(NOT EXISTS "${WINDOWS_SDK_PATH}/kits/10/Include")
message(FATAL_ERROR "Invalid WINDOWS_SDK_PATH: ${WINDOWS_SDK_PATH}")
endif()
# rm: detect msvc version
file(GLOB _msvc_versions LIST_DIRECTORIES true ${MSVC_WINSYSROOT}/VC/Tools/MSVC/*)
list(GET _msvc_versions 0 _msvc_dir)
file(GLOB _winsdk_versions LIST_DIRECTORIES true
"${WINDOWS_SDK_PATH}/kits/10/Include/*")
if(NOT _winsdk_versions)
message(FATAL_ERROR "No Windows SDK versions found")
endif()
# rm: detect window sdk version
file(GLOB _winsdk_versions LIST_DIRECTORIES true ${MSVC_WINSYSROOT}/kits/10/Include/*)
list(GET _winsdk_versions 0 _winsdk_dir)
get_filename_component(_winsdk_ver ${_winsdk_dir} NAME)
get_filename_component(_winsdk_ver "${_winsdk_dir}" NAME)
add_compile_options(
--target=x86_64-pc-windows-msvc
-fms-compatibility
-fms-extensions
-fdelayed-template-parsing
# rm: paths to msvc and windows sdk headers
"-imsvc${_msvc_dir}/include"
"-imsvc${_msvc_dir}/atlmfc/include"
"-imsvc${MSVC_WINSYSROOT}/kits/10/Include/${_winsdk_ver}/ucrt"
"-imsvc${MSVC_WINSYSROOT}/kits/10/Include/${_winsdk_ver}/um"
"-imsvc${MSVC_WINSYSROOT}/kits/10/Include/${_winsdk_ver}/shared"
"-imsvc${MSVC_WINSYSROOT}/kits/10/Include/${_winsdk_ver}/winrt"
/winsysroot ${WINDOWS_SDK_PATH}
)
add_link_options(/winsysroot:${MSVC_WINSYSROOT})
add_link_options(/winsysroot:${WINDOWS_SDK_PATH})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)