message: [vcpkg] Fix bug when building v141@64-bit from a v140@32-bit prompt
diff: @@ -37,6 +37,10 @@ namespace vcpkg::Commands::Build
  }
  }
  + // If these environment variables are set while running the VS2017 developer prompt, it will not correctly initialize the build environment.
  + _wputenv_s(L"VSINSTALLDIR", L"");
  + _wputenv_s(L"DevEnvDir", L"");
  +
  const fs::path ports_cmake_script_path = paths.ports_cmake;
  const Environment::vcvarsall_and_platform_toolset vcvarsall_bat = Environment::get_vcvarsall_bat(paths);
  const std::wstring command = Strings::wformat(LR"("%s" %s >nul 2>&1 && cmake -DCMD=BUILD -DPORT=%s -DTARGET_TRIPLET=%s -DVCPKG_PLATFORM_TOOLSET=%s "-DCURRENT_PORT_DIR=%s/." -P "%s")",
  