如何向 `pod_target_xcconfig` 添加更多标志?

How add to `pod_target_xcconfig` more flags?

我有 podspec 个文件并正在使用 pod_target_xcconfig。 现在我只添加了一个标志:

"SWIFT_ACTIVE_COMPILATION_CONDITIONS"  => "SPPERMISSIONS_CAMERA"

如何添加更多标志?我是说语法。

也许:

"SWIFT_ACTIVE_COMPILATION_CONDITIONS"  => "SPPERMISSIONS_CAMERA, SECOND_FLAG"
"SWIFT_ACTIVE_COMPILATION_CONDITIONS"  => "SPPERMISSIONS_CAMERA", "SECOND_FLAG"
"SWIFT_ACTIVE_COMPILATION_CONDITIONS"  => "SPPERMISSIONS_CAMERA" + "SECOND_FLAG"

用 space:

分隔值
s.pod_target_xcconfig = { "SWIFT_ACTIVE_COMPILATION_CONDITIONS"  => "SPPERMISSIONS_CAMERA SECOND_FLAG" }