minecraft-pi-reborn/cmake/base-toolchain.cmake

36 lines
1.7 KiB
CMake

# Pick GCC Version
macro(pick_gcc_version gcc_root gcc_version)
if(NOT DEFINED "${gcc_version}")
file(GLOB children RELATIVE "${gcc_root}" "${gcc_root}/*")
set("${gcc_version}" "" CACHE STRING "" FORCE)
foreach(child IN LISTS children)
if(IS_DIRECTORY "${gcc_root}/${child}" AND ("${${gcc_version}}" STREQUAL "" OR "${child}" GREATER_EQUAL "${${gcc_version}}"))
set("${gcc_version}" "${child}" "" CACHE STRING "" FORCE)
endif()
endforeach()
if("${${gcc_version}}" STREQUAL "")
message(FATAL_ERROR "Unable To Pick GCC Version")
endif()
message(STATUS "Using GCC Version: ${${gcc_version}}")
endif()
endmacro()
# Setup Toolchain
macro(setup_toolchain target)
# Use ARM Cross-Compiler
set(CMAKE_C_COMPILER "clang")
set(CMAKE_C_COMPILER_TARGET "${target}")
set(CMAKE_CXX_COMPILER "clang++")
set(CMAKE_CXX_COMPILER_TARGET "${target}")
set(CMAKE_FIND_ROOT_PATH "/usr/${target}" "/usr/lib/${target}")
# Include Directories
pick_gcc_version("/usr/lib/gcc-cross/${target}" GCC_VERSION)
set(NEW_FLAGS "-nostdinc -nostdinc++ -Wno-unused-command-line-argument -isystem /usr/lib/gcc-cross/${target}/${GCC_VERSION}/include -isystem /usr/${target}/include/c++/${GCC_VERSION} -isystem /usr/${target}/include/c++/${GCC_VERSION}/${target} -isystem /usr/${target}/include")
set(CMAKE_C_FLAGS_INIT "${CMAKE_C_FLAGS_INIT} ${NEW_FLAGS}")
set(CMAKE_CXX_FLAGS_INIT "${CMAKE_CXX_FLAGS_INIT} ${NEW_FLAGS}")
# Extra
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
endmacro()