Ubuntu 24.04自动化安装vcpkg遇metrics.cpp崩溃问题求助

在重复部署Ubuntu 24.04系统的自动化配置流程中，vcpkg bootstrap阶段反复出现崩溃，错误信息如下：

Downloading vcpkg-glibc...
vcpkg package management program version 2025-06-20-ef7c0d541124bbdd334a03467e7edb6c3364d199

See LICENSE.txt for license information.
[91m/source/src/vcpkg/metrics.cpp(176): unreachable code was reached
[0mAborted (core dumped)

相关自动化脚本片段：

if [[ ! -f "${USER_HOME}/.l.done" ]]; then
      log "[4/7] Cloning and bootstrapping vcpkg"
      cd "${USER_HOME}"
      rm -rf "$VCPKG_DIR"
      git clone https://github.com/microsoft/vcpkg "$VCPKG_DIR"
      cd "$VCPKG_DIR"
      # Disable metrics properly
      export VCPKG_METRICS_OPT_OUT=1
      ./bootstrap-vcpkg.sh --disableMetrics
      log "vcpkg ready at $VCPKG_DIR/vcpkg"
      touch "${USER_HOME}/.l.done"
    else
      log "[4/7] skipped"
    fi

解决步骤 #

• 强制从源码编译vcpkg：Ubuntu 24.04自带的glibc 2.39和vcpkg预编译的二进制包存在兼容性问题，bootstrap时加上--no-download参数，避免下载预编译的glibc适配包，直接从源码编译：
  修改bootstrap命令为：

  ./bootstrap-vcpkg.sh --disableMetrics --no-download
  

• 提前设置metrics禁用变量：把export VCPKG_METRICS_OPT_OUT=1移到git clone之前，确保整个vcpkg初始化过程都能读取到该变量，避免metrics模块初始化时的逻辑冲突：

  export VCPKG_METRICS_OPT_OUT=1
  git clone https://github.com/microsoft/vcpkg "$VCPKG_DIR"
  

• 清理残留缓存：每次部署前清理vcpkg的缓存目录，避免旧的预编译文件干扰：
  在rm -rf "$VCPKG_DIR"后加上：

  rm -rf "${USER_HOME}/.cache/vcpkg"
  

修改后的完整脚本片段 #

if [[ ! -f "${USER_HOME}/.l.done" ]]; then
      log "[4/7] Cloning and bootstrapping vcpkg"
      cd "${USER_HOME}"
      rm -rf "$VCPKG_DIR"
      rm -rf "${USER_HOME}/.cache/vcpkg"
      # Disable metrics before cloning to ensure full coverage
      export VCPKG_METRICS_OPT_OUT=1
      git clone https://github.com/microsoft/vcpkg "$VCPKG_DIR"
      cd "$VCPKG_DIR"
      ./bootstrap-vcpkg.sh --disableMetrics --no-download
      log "vcpkg ready at $VCPKG_DIR/vcpkg"
      touch "${USER_HOME}/.l.done"
    else
      log "[4/7] skipped"
    fi

内容的提问来源于stack exchange，提问作者Anthony Persson