====== Conan ======
    * [[https://conan.io/|conan.io]] - the C/C++ Package Manager, 
    * 仓库：https://conan.io/center/
    * 结合 [[https://jfrog.com/|JFrog]] 可构建私有C/C++二进制包管理
      * 私有仓创建下载 [[https://conan.io/downloads.html]]
      * https://docs.conan.io/en/latest/uploading_packages/artifactory/artifactory_ce.html
    * conan 的[[https://docs.conan.io/en/latest/reference/generators/cmake.html|cmake 变量表]]
    * 关于打包[[https://docs.conan.io/en/latest/creating_packages/understand_packaging.html|understand_packaging]]
    * 添加 bincrafter 仓：https://bincrafters.readthedocs.io/en/latest/using_packages.html#adding-the-bincrafters-repository-as-a-conan-remote
    * 调整仓库顺序：<code bash>
conan remote clean
conan remote add myconan <your private conan artifactory url>
conan remote add bincrafters https://bincrafters.jfrog.io/artifactory/api/conan/public-conan
conan remote add conancenter https://center.conan.io
# conan remote add conan-center https://conan.bintray.com  # 此仓库已被官方废弃
 </code>
    * 更新conan: <code bash>pip install conan --upgrade # Might need sudo or --user</code>
    * vscode 整合 conan 头文件：在 ''c/c++'' 插件设置里 ''includePath'' 添加 ''~/.conan/data/**''

===== Android NDK 交叉编译 =====
  * 官方文档参考这个链接 https://docs.conan.io/en/latest/integrations/cross_platform/android.html， 而不是这个链接<del>https://docs.conan.io/en/latest/systems_cross_building/cross_building.html</del>， 后者的示例在 armv8 会错误编译成 armv7。
  * 可直接使用官方[[https://docs.conan.io/en/latest/integrations/cross_platform/android.html|这个链接]]的第一种办法，即在 profile 里直接使用 ''android-ndk''包作为 tool_requires, 比如编译 armv8:<code ini>include(default)
[settings]
arch=armv8
build_type=Release
compiler=clang
compiler.libcxx=libc++
compiler.version=11
os=Android
os.api_level=21
[tool_requires]
android-ndk/r22b
[options]
[env]</code> 然后install 或 create 时指定跨平台编译 <code bash>conan install .. --build=missing -pr:h android-armv8 -pr:b default</code>
  * [[https://docs.conan.io/en/latest/systems_cross_building/cross_building.html|这个链接里android 示例]] 错误的原因是， Android 与 CMake 结合时， CMake 除了指定 android.toolchain.cmake, 还需要额外[[https://developer.android.com/ndk/guides/cmake#variables|指定变量]] ''ANDROID_ABI'' ''ANDROID_PLATFORM'' 才能正确编译出目标版本。 而 conan 并[[https://docs.conan.io/en/latest/reference/env_vars.html|没有办法在 profile 里直接设置]]这两个 cmake 变量, 所以就算你的工程的 CMakefile.txt 设置了这两变量，你的依赖包在cmake building 时也会默认选择了错误的arch。