解決更新到os x10.11後openssl標頭檔無法找到的問題

解決更新到os x10.11後openssl標頭檔無法找到的問題
os x從10.10更新到10.11後，原有代碼編譯報錯，#include <openssl/ssl.h>等標頭檔無法找到: "openssl/ssl.h: No such file or directory". 原有環境：os x10.10+Xcode6 更新後的環境：os x10.11+Xcode7, Qt5.3.1+Qt Creator 3.3.0 解決辦法： 1.命令列執行：xcode-select —install,安裝xcode命令列工具，/usr路徑下出現include目錄 (如果原來/usr/include目錄已經存在，跳過這一步)；    /usr/include/openssl目錄裡包含了相關的標頭檔 2.在/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/路徑下建立openssl目錄； 3.把 /usr/include/openssl路徑下的所有檔案拷貝到剛建立的openssl目錄下； 原因： os x10.11開始，蘋果sdk中不再提供openssl，在Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include路徑下是找不到原有的openssl目錄的。 " Sadly, it looks like we're not supposed to use it any more.  As you say, it's included in the 10.10 SDK, but is deliberately missing from the 10.11 SDK.