可达性重复的符号
链接错误：
ld: duplicate symbol _OBJC_METACLASS_$_Reachability in /Users/jmf/Documents/iOS Development/jmf_Client/jmf/jmf/ww_libs/libmfcbroem_ios.a(Reachability.o) and /Users/tpf/Library/Developer/Xcode/DerivedData/jmf-erlknghfcpoomnfanzovahfacgpv/Build/Intermediates/jmf.build/Debug-iphoneos/jmf.build/Objects-normal/armv7/Reachability.o for architecture armv7 如果我只是删除h / m文件（和相关的导入指令），希望在libmfcbroem_ios.a中使用Reachability …链接器会抛出：
Undefined symbols for architecture armv7: "_kReachabilityChangedNotification", referenced from: -[MKNetworkEngine initWithHostName:customHeaderFields:] in MKNetworkEngine.o -[MKNetworkEngine dealloc] in MKNetworkEngine.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)
我怎么能告诉链接器利用“a”文件的可达性？
（免责声明，我刚开始使用ObjC / iOS）
谢谢你的帮助…
删除Reachability.m文件，只包括标题