message: Specify GIT only when VCPKG_FORCE_SYSTEM_BINARIES is set
diff: @@ -362,10 +362,8 @@ namespace vcpkg::Build
  }
  const Toolset& toolset = paths.get_toolset(pre_build_info);
  - const std::string cmd_launch_cmake = System::make_cmake_cmd(
  - cmake_exe_path,
  - paths.ports_cmake,
  - {
  +
  + std::vector<System::CMakeVariable> variables {
  {"CMD", "BUILD"},
  {"PORT", config.scf.core_paragraph->name},
  {"CURRENT_PORT_DIR", config.port_dir},
  @@ -376,10 +374,19 @@ namespace vcpkg::Build
  {"DOWNLOADS", paths.downloads},
  {"_VCPKG_NO_DOWNLOADS", !Util::Enum::to_bool(config.build_package_options.allow_downloads) ? "1" : "0"},
  {"_VCPKG_DOWNLOAD_TOOL", to_string(config.build_package_options.download_tool)},
  - {"GIT", git_exe_path},
  {"FEATURES", Strings::join(";", config.feature_list)},
  {"ALL_FEATURES", all_features},
  - });
  + };
  +
  + if (!System::get_environment_variable("VCPKG_FORCE_SYSTEM_BINARIES").has_value())
  + {
  + variables.push_back({"GIT", git_exe_path});
  + }
  +
  + const std::string cmd_launch_cmake = System::make_cmake_cmd(
  + cmake_exe_path,
  + paths.ports_cmake,
  + variables);
  auto command = make_build_env_cmd(pre_build_info, toolset);
  if (!command.empty())
  