CMakeLists.txt

cmake_minimum_required(VERSION 3.10.0)
project(canary C CXX)

option(LLVM_CONFIG_PATH "Path to llvm-config executable" "")

unset(LLVMCONFIG CACHE)

if (LLVM_CONFIG_PATH)
    set(LLVMCONFIG "${LLVM_CONFIG_PATH}")
else()
    find_program(LLVMCONFIG llvm-config)
    if (NOT LLVMCONFIG)
            message(FATAL_ERROR "llvm-config not found!")
    endif()
endif()

execute_process(
    COMMAND ${LLVMCONFIG} --version
    OUTPUT_VARIABLE LLVM_VERSION_OUTPUT
    ERROR_QUIET
    OUTPUT_STRIP_TRAILING_WHITESPACE
)

if (LLVM_VERSION_OUTPUT MATCHES "^([0-9]+)")
    set(LLVM_MAJOR_VERSION "${CMAKE_MATCH_1}")
else()
    message(FATAL_ERROR "Failed to parse LLVM version from: ${LLVM_VERSION_OUTPUT}")
endif()

if (LLVM_MAJOR_VERSION STREQUAL "12")
    message(STATUS "Using LLVM version 12")
    add_definitions(-DLLVM12)
elseif (LLVM_MAJOR_VERSION STREQUAL "14")
    message(STATUS "Using LLVM version 14")
    add_definitions(-DLLVM14)
else()
    message(FATAL_ERROR "Unsupported or unknown LLVM version: ${LLVM_VERSION_OUTPUT}")
endif()

execute_process(COMMAND ${LLVMCONFIG} --cxxflags OUTPUT_VARIABLE CMAKE_CXX_FLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${LLVMCONFIG} --cflags OUTPUT_VARIABLE CMAKE_C_FLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${LLVMCONFIG} --cppflags OUTPUT_VARIABLE CMAKE_CPP_FLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${LLVMCONFIG} --ldflags OUTPUT_VARIABLE CMAKE_EXE_LINKER_FLAGS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${LLVMCONFIG} --system-libs OUTPUT_VARIABLE LIBS OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${LLVMCONFIG} --includedir OUTPUT_VARIABLE LLVM_INCLUDE_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LIBS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

include_directories(${LLVM_INCLUDE_DIRS})
include_directories(AFTER ${CMAKE_CURRENT_SOURCE_DIR}/include)

add_subdirectory(lib)
add_subdirectory(tools)
add_subdirectory(benchmarks)