base with spdlog

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "external/spdlog"]
+	path = external/spdlog
+	url = https://github.com/gabime/spdlog.git

CMakeLists.txt

@@ -0,0 +1,74 @@
+cmake_minimum_required(VERSION 3.20)
+
+# --------------------------------------------------
+# Project
+# --------------------------------------------------
+project(wolfram-engine-wrapper-client LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# Default to Release if not specified
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Release)
+endif()
+
+# --------------------------------------------------
+# External dependency: spdlog
+# --------------------------------------------------
+add_subdirectory(external/spdlog)
+
+# --------------------------------------------------
+# Executable
+# --------------------------------------------------
+add_executable(${PROJECT_NAME} src/main.cpp)
+
+# --------------------------------------------------
+# Auto-discover include dirs under src/
+# --------------------------------------------------
+file(GLOB_RECURSE SRC_SUBDIRS LIST_DIRECTORIES true
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/*"
+)
+
+set(SRC_INCLUDES "")
+foreach(dir ${SRC_SUBDIRS})
+    if(IS_DIRECTORY ${dir})
+        list(APPEND SRC_INCLUDES ${dir})
+    endif()
+endforeach()
+
+target_include_directories(${PROJECT_NAME} PRIVATE ${SRC_INCLUDES})
+
+# --------------------------------------------------
+# Auto-discover all .cpp except main.cpp
+# --------------------------------------------------
+file(GLOB_RECURSE ALL_CPP
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp"
+)
+
+list(REMOVE_ITEM ALL_CPP
+    "${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp"
+)
+
+target_sources(${PROJECT_NAME} PRIVATE ${ALL_CPP})
+
+# --------------------------------------------------
+# Link dependencies
+# --------------------------------------------------
+target_link_libraries(${PROJECT_NAME} PRIVATE
+    spdlog::spdlog
+)
+
+# --------------------------------------------------
+# Compiler warnings
+# --------------------------------------------------
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
+    target_compile_options(${PROJECT_NAME} PRIVATE
+        -Wall -Wextra -Wpedantic
+        -Wconversion -Wshadow
+        -Wnull-dereference
+        -Wdouble-promotion
+    )
+endif()
+