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include_guard(GLOBAL)

set(PLATFORM_TARGET "x86_64-pc-elf")

set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")

set(CMAKE_SYSTEM_NAME "Generic-ELF")
set(CMAKE_SYSTEM_PROCESSOR "x86_64")

set(CMAKE_ASM_COMPILER_TARGET "${PLATFORM_TARGET}")
set(CMAKE_CXX_COMPILER_TARGET "${PLATFORM_TARGET}")

find_program(CMAKE_ASM_COMPILER "${CMAKE_ASM_COMPILER_TARGET}-gcc" REQUIRED)
find_program(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER_TARGET}-g++" REQUIRED)

set(CMAKE_CXX_FLAGS_INIT
"-mno-red-zone \
-mcmodel=kernel \
-fno-pie \
-fno-rtti \
-fno-exceptions \
-ffunction-sections \
-fdata-sections"
)

set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections")

set(CMAKE_CXX_FLAGS_DEBUG "-ggdb3")
set(CMAKE_ASM_FLAGS_DEBUG "-ggdb3")

set(CMAKE_ASM_FLAGS_MINSIZEREL "-Os -DNDEBUG -ggdb3")
set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG -ggdb3")

set(CMAKE_ASM_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")

set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")