如何在GCC中使用OpenSSL? [英] How to use OpenSSL with GCC?

问题描述

我正在尝试在gcc程序中使用openssl，但是它不起作用.

I'm trying to use openssl in a gcc program but it isn't working.

g++ server.cpp /usr/lib/libssl.a -o server

给出错误消息，与-l选项一样.我必须在命令行上键入什么才能与openssl链接?文件/usr/lib/libssl.a存在，但是尽管如此，我仍然收到链接器错误no such function MD5() exists.

gives an error message, as does anything with the -l option. What must I type on the command line to link with openssl? The file /usr/lib/libssl.a exists, but nevertheless I still get the linker error no such function MD5() exists.

推荐答案

在不知道您看到的确切错误的情况下，很难提供确切的解决方案.这是我的最佳尝试.

Without knowing the exact errors you are seeing, it is difficult to provide an exact solution. Here is my best attempt.

根据您提供的信息，听起来链接器似乎失败了，因为它无法在libssl.a中找到对md5函数的引用.我相信此功能实际上在libcrypto中，因此您可能还需要指定此库.

From the information you provided, it sounds as though the linker is failing because it cannot find a reference to the md5 function in libssl.a. I believe this function is actually in libcrypto so you may need to specify this library as well.

g++ server.cpp -L/usr/lib -lssl -lcrypto -o server

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