You must install signalwire-client-c to build mod_signalwire

　　错误：

make[4]: 进入目录“/home/quantum6/freeswitch/freeswitch-1.10.3/src/mod/applications/mod_signalwire”
Makefile:947: *** You must install signalwire-client-c to build mod_signalwire。 停止。
make[4]: 离开目录“/home/quantum6/freeswitch/freeswitch-1.10.3/src/mod/applications/mod_signalwire”
Makefile:705: recipe for target 'mod_signalwire-install' failed
make[3]: *** [mod_signalwire-install] Error 1      

　　解决办法：

https://blog.csdn.net/quantum7/article/details/106178945