missing dependencies for the following libraries:libpthread.so.0.(OpenWRT)

自己在openwrt/package/utils/目录下新添加了一个程序包，在编译的时候报错，

...is missing dependencies for the following libraries:libpthread.so.0.

这需要在该程序包的顶层makefile中添加+libpthread部分。

define Package/rssi_client
    SECTION:=utils
    CATEGORY:=Utilities
    TITLE:=rssi tool
    DEPENDS:=+libncurses +libpthread
endef