start writing translator

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+project(argon C)
+
+# Conan will define FLEX_EXECUTABLE via an environment variable or toolchain
+# You should set it in CMakeLists.txt only if it's not set
+if(NOT DEFINED FLEX_EXECUTABLE)
+    find_program(FLEX_EXECUTABLE flex REQUIRED)
+endif()
+
+# Set source and output files
+set(LEXER_SRC ${CMAKE_CURRENT_SOURCE_DIR}/src/lexer/lex.l)
+set(LEXER_C ${CMAKE_CURRENT_SOURCE_DIR}/src/lexer/lex.yy.c)
+set(LEXER_H ${CMAKE_CURRENT_SOURCE_DIR}/src/lexer/lex.yy.h)
+
+# Gather all C files EXCEPT the generated lex.yy.c
+file(GLOB_RECURSE CFILES CONFIGURE_DEPENDS
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.c
+)
+list(REMOVE_ITEM CFILES ${LEXER_C})  # remove if globbed
+
+# Step 1: Custom command to generate lexer
+add_custom_command(
+    OUTPUT ${LEXER_C} ${LEXER_H}
+    COMMAND ${FLEX_EXECUTABLE} --header-file=${LEXER_H} -o ${LEXER_C} ${LEXER_SRC}
+    DEPENDS ${LEXER_SRC}
+    COMMENT "Generating lexer with flex"
+)
+
+# Step 2: Custom target for lexer
+add_custom_target(GenerateLexer DEPENDS ${LEXER_C} ${LEXER_H})
+
+# Step 3: Add executable
+add_executable(argon ${CFILES} ${LEXER_C})
+
+# Step 4: Build order
+add_dependencies(argon GenerateLexer)
+
+# Step 5: Output path
+set_target_properties(argon PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/build/bin
+)
+
+# Step 6: Conan libraries
+find_package(BDWgc REQUIRED)
+find_package(cJSON REQUIRED)
+find_package(gmp REQUIRED)
+
+target_compile_options(argon PRIVATE -O3 -Wall -Wextra -Wno-unused-function -s)
+target_link_options(argon PRIVATE -static)
+
+target_link_libraries(argon PRIVATE
+    BDWgc::BDWgc
+    cjson::cjson
+    gmp::gmp
+    m
+)
+
+target_include_directories(argon PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/lexer
+)