cmake

# REF
[cmake-mastery-learning-path](https://github.com/X-Gen-Lab/cmake-mastery-learning-path/blob/main/docs/zh-CN/README.md)

# 
cmake是一个跨平台的构建系统生成器

```
┌─────────────────┐
│ CMakeLists.txt  │  ← 你编写的配置文件
└────────┬────────┘
         │
         ▼
    ┌────────┐
    │ CMake  │  ← CMake 处理配置
    └────┬───┘
         │
         ▼
┌────────────────────┐
│ 构建系统文件        │  ← 生成的构建文件
│ (Makefile/VS项目)  │
└─────────┬──────────┘
          │
          ▼
     ┌─────────┐
     │ 构建工具 │  ← make/MSBuild/ninja
     └────┬────┘
          │
          ▼
   ┌──────────────┐
   │ 可执行文件/库 │  ← 最终产物
   └──────────────┘
```

1. **配置阶段（Configure）**
   ```bash
   cmake -S . -B build
   ```
   CMake 读取 CMakeLists.txt，生成构建文件

2. **构建阶段（Build）**
   ```bash
   cmake --build build
   ```
   使用生成的构建文件编译项目

3. **安装阶段（Install）** - 可选
   ```bash
   cmake --install build
   ```
   将构建产物安装到系统

# exercise
project()

find_package()

basic signature: //some properties

search mode:
    module mode: search for a file called Find<PackageName>.cmake
        Find<PackageName>.cmake file is not typically provided by the package itself, rather by some external, such as operating system
        CMAKE_MODILE_PATH
config mode:
    In this mode, CMake searches for a file called <lowercasePackageName>-config.cmake or <PackageName>Config.cmake. It will also look for <lowercasePackageName>-config-version.cmake or <PackageName>ConfigVersion.cmake

include_directory : 全局包含include头文件
target_include_directory(target "xxx") : 目标相关include头文件
target_link_library : 声明目标间依赖关系