IOS lib(.a)库冲突解决办法

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1.依次查看lib库所支持的框架类型。i386：模拟器，armv7：iphone4，armv7s：iphone5,iphone5s，arm64：iphone6,iphone6p

1 robindeMacBook-Pro-2:testlib robin$ lipo -info lib.a 
2 Architectures in the fat file: lib.a are: armv7 armv7s arm64 
3 robindeMacBook-Pro-2:testlib robin$ 
fat file：表示该lib库文件中合并了多个框架的lib库，这里合并的有armv7 armv7s arm64。如果同时合并了模拟器的lib库，这里还会有i386的标识。

1 robindeMacBook-Pro-2:testlib robin$ lipo -extract_family armv7 -output lib_armv7.a lib.a 
2 robindeMacBook-Pro-2:testlib robin$ lipo -info lib_armv7.a 
3 Architectures in the fat file: lib_armv7.a are: armv7 armv7s
查看发现分离出来的lib_armv7.a仍旧是fat文件，只有Non-fat文件才可以分离.o。所以仍然需要进行进一步分离。

1 robindeMacBook-Pro-2:testlib robin$ lipo lib_armv7.a -thin armv7 -output lib_final_armv7.a
2 robindeMacBook-Pro-2:testlib robin$ lipo lib_armv7.a -thin armv7s -output lib_final_armv7s.a
3 robindeMacBook-Pro-2:testlib robin$ lipo -info lib_final_armv7.a
4 input file lib_final_armv7.a is not a fat file
5 Non-fat file: lib_final_armv7.a is architecture: armv7
6 robindeMacBook-Pro-2:testlib robin$ lipo -info lib_final_armv7s.a
7 input file lib_final_armv7s.a is not a fat file
8 Non-fat file: lib_final_armv7s.a is architecture: armv7s
复制代码
此时分离出来的已经是Non-fat文件了，才可进行分离.o。

arm64是iOS系统最新增加的框架，按照分离armv7,armv7s的方式无论如何都无法分离出arm64版本的Non-fat文件，经过多次试验发现可以通过下面命令直接分离。

1 robindeMacBook-Pro-2:testlib robin$ lipo lib.a -thin arm64 -output lib_final_arm64.a
2 robindeMacBook-Pro-2:testlib robin$ lipo -info lib_final_arm64.a 
3 input file lib_final_arm64.a is not a fat file
4 Non-fat file: lib_final_arm64.a is architecture: arm64

1 robindeMacBook-Pro-2:testlib robin$ lipo -extract_family i386 -output lib_final_i386.a lib.a
2 robindeMacBook-Pro-2:testlib robin$ lipo -info lib_final_i386.a 
3 input file lib_final_i386.a is not a fat file
4 Non-fat file: lib_final_i386.a is architecture: i386

1 robindeMacBook-Pro-2:testlib robin$ mkdir armv7
2 robindeMacBook-Pro-2:testlib robin$ cd armv7
3 robindeMacBook-Pro-2:armv7 robin$ ar -x ../lib_final_armv7.a
其他同理

1 robindeMacBook-Pro-2:arm64 robin$ libtool -static -o ../libarmv7.a *.o
其他同理

1 robindeMacBook-Pro-2:testlib robin$ lipo -create -output libs.a libarmv7.a libarmv7s.a libarm64.a 
2 robindeMacBook-Pro-2:testlib robin$ lipo -info libs.a 
3 Architectures in the fat file: libs.a are: armv7 armv7s arm64

IOS lib(.a)库冲突解决办法

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原文地址：http://blog.csdn.net/lin1986lin/article/details/45096553