md5.h 文件未找到错误 Xcode 7 for Mac 应用程序
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/32997707/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
md5.h File Not Found error Xcode 7 for Mac application
提问by mjl007
I am trying to use the md5 module from the openSSL library. So in one of my header I included the openssl library by including it like this:
我正在尝试使用 openSSL 库中的 md5 模块。因此，在我的标题之一中，我通过如下方式包含了 openssl 库：
#include <openssl/md5.h>
However Xcode is giving me the message md5.h file not found. I went into my /usr/include and confirmed that openssl/md5.h was present.
但是 Xcode 给我消息 md5.h 文件未找到。我进入我的 /usr/include 并确认存在 openssl/md5.h。
Here are the things that I have tried to solve the issue:
以下是我尝试解决问题的方法：
- I cleaned my project
- Made sure to include the libcrypto.dylib in the framework/library section
- I have included the /usr/include/ in the User Header search path and Header search path within the build settings and have set it to recursively search sub directories
- 我清理了我的项目
- 确保在框架/库部分包含 libcrypto.dylib
- 我已将 /usr/include/ 包含在构建设置中的 User Header 搜索路径和 Header 搜索路径中，并将其设置为递归搜索子目录
I am currently running OS X 10.10.5 and my Xcode version is 7.0.1
我目前运行的是 OS X 10.10.5，我的 Xcode 版本是 7.0.1
采纳答案by mjl007
I have finally figured it out. In the latest version of Xcode, apparently it does not look in the /usr/include/. I even tried to add this to the User header search path, but that ended up throwing more errors.
我终于想通了。在最新版本的 Xcode 中，显然它不在 /usr/include/ 中。我什至尝试将其添加到用户标头搜索路径中，但最终引发了更多错误。
So I had to manually copy into Xcode's own internal usr directory:
所以我不得不手动复制到 Xcode 自己的内部 usr 目录中：
/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include
/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include
After copying over the openssl folder, relaunched xcode and the error went away. I dont know why apple decided to move the Developer's folder within the app itself or why it doesnt just look in the /usr/ folder like gcc/g++ does, but this is a workaround that works for me now.
复制完 openssl 文件夹后，重新启动 xcode 并且错误消失了。我不知道为什么苹果决定在应用程序本身中移动开发人员的文件夹，或者为什么它不像 gcc/g++ 那样只在 /usr/ 文件夹中查找，但这是一种现在对我有用的解决方法。
回答by xryl669
You need to install Xcode Command line tools from here for your exact Xcode version: https://developer.apple.com/downloads/
您需要从这里为您的确切 Xcode 版本安装 Xcode 命令行工具：https: //developer.apple.com/downloads/
Then, openssl source will be installed in /usr/include.
然后，openssl 源将安装在 /usr/include 中。
Also, you need to link with openssl by adding "-lcrypto" and "-lssl" (if you need SSL too) in your linker's flags
此外，您需要通过在链接器的标志中添加“-lcrypto”和“-lssl”（如果您也需要 SSL）来与 openssl 链接
