xxx file was built for archive which is not the architecture being linked (i386)这是因为静态库是为iOS 环境编译的，并不能在模拟器环境下使用，只要将Build 目标改成设备即可。如果是：
ld: warning: ignoring file ./libsasl2.a, file was built for archive which is not the architecture being linked (armv7): ./libsasl2.a则表示静态库的编译目标不是armv7（可能是armv6），需重新为armv7 编译静态库。
iOS 链接错误file was built for archive which is not the architecture being linked (i386)
原文：http://blog.csdn.net/yamingwu/article/details/44265193