为ios编译openssl

ios版本：5.1

os:lion 10.7.4

1）编译arm6

makedir arm6lib

./configure BSD-generic32 --prefix=/libs/openssl --openssldir=/libs/openssl

更改文件MakeFile

CC=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -arch armv7
CFLAG= -DOPENSSL_THREADS -pthread -D_THREAD_SAFE -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DTERMIOS -O3 -fomit-frame-pointer -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk

make 

make install

将arm6lib 目录复制出来

删除openssl-0.9.8d目录因为发现make clean并不是真的全部清除，留有很多.o文件 直接在这个在环境中编译arm7的会产生错误

2) 编译arm7

在新的环境中编译和arm6的类似6

 makedir arm7lib

./configure BSD-generic32 --prefix=/libs/openssl --openssldir=/libs/openssl

更改文件MakeFile

CC=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc -arch armv7
CFLAG= -DOPENSSL_THREADS -pthread -D_THREAD_SAFE -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DTERMIOS -O3 -fomit-frame-pointer -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk

make 

make install

将arm7lib 目录复制出来

3）连接为universal lib

前面我们将arm6lib arm7lib复制到一个目录，进入这个目录

lipo -create ./arm6lib/lib/libcrypto.a  ./arm7lib/lib/libcrypto.a  -output ./libcrypto.a

lipo -create ./arm6lib/lib/libssl.a  ./arm7lib/lib/libssl.a  -output ./libssl.a

检验结果

lipo -info libssl.a 

结果为：

   Architectures in the fat file: libssl.a are: armv6 armv7 

表示成功

4)模拟器编译

与上面类似，只是修改Makefile时有点不同

CC=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386
CFLAG= -DOPENSSL_THREADS -pthread -D_THREAD_SAFE -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DTERMIOS -O3 -fomit-frame-pointer -Wall -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk