Test Case 1:
libcurl.dylib 354kb
libcurl+ssl.dylib 412kb
------------------------------------------
diff: 65kb
Test Case 2:
libcurl7.34.dylib 350kb
libcurl7.35.dylib 354kb
------------------------------------------
diff: 30kb
原文：http://blog.csdn.net/skymanwu/article/details/20313459