cmake_minimum_required(VERSION 3.21)

project(SysYRuntime VERSION 1.0
  DESCRIPTION "SysY Language official runtime environment"
  LANGUAGES C)

set(CMAKE_C_STANDARD 99)
set(CMAKE_C_COMPILER "riscv64-unknown-elf-gcc")

set(INCLUDE_DIRECTORY "${PROJECT_SOURCE_DIR}/include" "/usr/riscv64-linux-gnu/include")
include_directories(${INCLUDE_DIRECTORY})

set(SOURCE_FILES "${PROJECT_SOURCE_DIR}/src/sylib.c")

if(BUILD_IR_TESTING)
  add_custom_target(sysy-ir ALL
    COMMAND clang ${CMAKE_C_FLAGS}
    -I ${INCLUDE_DIRECTORY}
    -S -emit-llvm
    ${SOURCE_FILES}
    -o ${CMAKE_CURRENT_BINARY_DIR}/sysy.ll
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    COMMENT "Compiling SysY Runtime Library to LLVM-IR"
    SOURCES ${SOURCE_FILES})
endif(BUILD_IR_TESTING)

add_library(sysy STATIC ${SOURCE_FILES})

# target_compile_options(sysy PUBLIC ${CMAKE_C_FLAGS} -flto)
# target_compile_options(sysy PUBLIC ${CMAKE_C_FLAGS} -emit-llvm -S)
target_compile_options(sysy PRIVATE ${CMAKE_C_FLAGS} --verbose)