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cmake_minimum_required(VERSION 3.4)
project(buildvm C)
set(EXTRA_COMPILER_FLAGS_FILE ""
CACHE PATH "Location of a file to specify extra compiler flags.")
set(EXTRA_COMPILER_FLAGS "")
if(EXISTS ${EXTRA_COMPILER_FLAGS_FILE})
file(READ ${EXTRA_COMPILER_FLAGS_FILE} EXTRA_COMPILER_FLAGS)
else()
set(EXTRA_COMPILER_FLAGS ${BUILDVM_COMPILER_FLAGS})
endif()
include(CheckTypeSize)
if("${EXTRA_COMPILER_FLAGS}" MATCHES "LUAJIT_ARCH_.*64")
set(TARGET_SIZE_OF_P 8)
else()
set(TARGET_SIZE_OF_P 4)
endif()
set(CXX_ARCH_FLAGS "")
if(NOT (CMAKE_SIZEOF_VOID_P EQUAL ${TARGET_SIZE_OF_P}))
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(CXX_ARCH_FLAGS "-m32")
else()
set(CXX_ARCH_FLAGS "-m64")
endif()
endif()
find_library(LIBM_LIBRARIES NAMES m)
add_executable(buildvm
${LUAJIT_DIR}/src/host/buildvm.c
${LUAJIT_DIR}/src/host/buildvm_asm.c
${LUAJIT_DIR}/src/host/buildvm_fold.c
${LUAJIT_DIR}/src/host/buildvm_lib.c
${LUAJIT_DIR}/src/host/buildvm_peobj.c)
target_compile_options(buildvm PRIVATE
${EXTRA_COMPILER_FLAGS} ${CXX_ARCH_FLAGS})
target_link_libraries(buildvm PRIVATE ${CXX_ARCH_FLAGS})
if(LIBM)
target_link_libraries(buildvm PRIVATE ${LIBM_LIBRARIES})
endif()
target_include_directories(buildvm PRIVATE
${LUAJIT_DIR}/src
${LUAJIT_DIR}/src/host
${CMAKE_BINARY_DIR}
${CMAKE_CURRENT_BINARY_DIR}/..
${CMAKE_CURRENT_BINARY_DIR}/../..
${CMAKE_CURRENT_BINARY_DIR}/../../..
${CMAKE_CURRENT_BINARY_DIR}
)
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