ios8.3 编译 arm64版 openssl-1.0.2a

xcode是6.3版的，ios sdk 是8.3的，

到http://www.openssl.org/source/下载最新版本openssl-1.0.2a

解压后用文本编辑器打开configure文件，

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将

# iPhoneOS/iOS
"iphoneos-cross","llvm-gcc:-O3 -isysroot \$(CROSS_TOP)/SDKs/\$(CROSS_SDK) -fomit-frame-pointer -fno-common::-D_REENTRANT:iOS:-Wl,-search_paths_first%:BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR:${no_asm}:dlfcn:darwin-shared:-fPIC -fno-common:-dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",

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替换为：

# iPhoneOS/iOS
"iphoneos-cross","llvm-gcc:-arch arm64 -O3 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.3.sdk -fomit-frame-pointer -fno-common::-D_REENTRANT:iOS:-Wl,-search_paths_first%:BN_LLONG RC4_CHAR RC4_CHUNK DES_UNROLL BF_PTR:${no_asm}:dlfcn:darwin-shared:-fPIC -fno-common:-dynamiclib:.\$(SHLIB_MAJOR).\$(SHLIB_MINOR).dylib",

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然后打开terminal，运行命令

./configure --prefix=/libs/openssl-1.0.2a/arm64 iphoneos-cross

make

make install

模拟器的可以用如下命令：

./configure --prefix=/libs/openssl-1.0.2a/x86_64 darwin64-x86_64-cc

./configure --prefix=/libs/openssl-1.0.2a/i386 darwin-i386-cc

make

make install

make clean