是否需要构建 boost.signals2 库？
我的系统在构建 boost 库时遇到问题。我知道大多数 boost 库（幸运的是）只是不需要构建的标头（有一些例外）。是否需要构建 boost::signals2 库？ boost.signals2 库是否依赖于 boost.signals 库？
My system is having trouble building the boost libraries. I understand that most boost libraries are (fortunately) just headers that do not need to be build (with some exceptions). Does the boost :: signals2 library need to be built? Also is the boost.signals2 library dependant on the boost.signals library?
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Signals 不只是标头，signals2 是。但是，signals2 是为线程安全而明确开发的，如果您使用 boost.thread，则必须对其进行编译。据我所知，signals2 不依赖于信号头。
Signals is not header-only, signals2 is. But however, signals2 is explicitly developed for thread-safety and if you use boost.thread, this has to be compiled. As far as I know signals2 is not dependent on signals headers.
不，signals2 只是标头。请参阅此处。
No, signals2 is header only. See here.