构建Openssl源代码以编译Boost [英] Building Openssl source for compiling boost
问题描述
注意.我已经阅读并阅读了 Boost :: asio :: ssl OpenSSL无法编译
note. I have seen and read Boost::asio::ssl OpenSSL not compiling
我在linux fedora 64上构建boost示例ssl服务器时遇到一些问题，我认为它的版本为15或16.这是一台大学计算机，因此我们没有root访问权限，并且由于周末是我通过SSH访问一台计算机.
我们没有root，也没有安装openssl.
我没有构建程序的增强库，并且示例服务器构建良好.然后，我尝试从源代码构建最新的openssl库.我提取到~/Dev/opensslSource
I am having some issues build the boost example ssl server on linux fedora 64 I think its version 15 or 16. It is a university machine so we do not have root access and since is the weekend I am accessing a machine via SSH.
We do not have root and openssl is not installed.
I built the boost library no program and the example server builds fine. I then tried to build the latest openssl library from source. I extracted to ~/Dev/opensslSource
Cd ~/Dev/opensslSource
./config --prefix=~/Dev/openssl --openssldir=~/Dev/openssl
Make
Make install
现在问题要么存在在那里，要么就是我包含和链接的方式. 因此，然后在我的boostexamples文件夹中保存了示例
Now either the problem exists there or in how I am including and linking. So then in my boostexamples folder I did saved the example sslserver.cpp And used the following to build.
g++ -I ~/Dev/boost_1_52_0/ -I ~/Dev/openssl/include -L ~/Dev/boost_1_52_0/stage/lib -L ~/Dev/openssl server.cpp -o server -lboost_system -lssl –lpthread
错误几乎无穷无尽.我什至看不到它们.但我相信它们只是不确定的参考.
The errors are almost endless. I cant even see them all. But they are all just undefided references I believe.
d1_enc.c:(.text+0x10c): undefined reference to `EVP_MD_size'
d1_enc.c:(.text+0x12f): undefined reference to `EVP_CIPHER_CTX_cipher'
d1_enc.c:(.text+0x155): undefined reference to `EVP_CIPHER_block_size'
d1_enc.c:(.text+0x1b2): undefined reference to `EVP_Cipher'
d1_enc.c:(.text+0x2cf): undefined reference to `EVP_Cipher'
d1_enc.c:(.text+0x34b): undefined reference to `EVP_CIPHER_block_size'
d1_enc.c:(.text+0x363): undefined reference to `EVP_CIPHER_block_size'
d1_enc.c:(.text+0x375): undefined reference to `RAND_bytes'
因此，在最初的几条评论之后，我将构建版本更改为.
So after the first few comments I have changed the build to.
g++ -I ~/Dev/boost_1_52_0/ -I ~/Dev/openssl/include -L ~/Dev/boost_1_52_0/stage/lib –L ~/Dev/openssl/lib server.cpp -o server -lboost_system -lssl -lcrypto -lpthread
现在出错.
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_globallookup':
dso_dlfcn.c:(.text+0x1d): undefined reference to `dlopen'
dso_dlfcn.c:(.text+0x33): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x3d): undefined reference to `dlclose'
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_bind_func':
dso_dlfcn.c:(.text+0x381): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x460): undefined reference to `dlerror'
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_bind_var':
dso_dlfcn.c:(.text+0x4e1): undefined reference to `dlsym'
dso_dlfcn.c:(.text+0x5c0): undefined reference to `dlerror'
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_load':
dso_dlfcn.c:(.text+0x637): undefined reference to `dlopen'
dso_dlfcn.c:(.text+0x6ae): undefined reference to `dlclose'
dso_dlfcn.c:(.text+0x6e5): undefined reference to `dlerror'
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_pathbyaddr':
dso_dlfcn.c:(.text+0x781): undefined reference to `dladdr'
dso_dlfcn.c:(.text+0x7e9): undefined reference to `dlerror'
/home/andrew/Dev/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_unload':
dso_dlfcn.c:(.text+0x84a): undefined reference to `dlclose'
collect2: ld returned 1 exit status
推荐答案
链接选项中缺少一些库:libssl依赖于libcrypto，而libcrypto依赖于libdl.总之，您将需要
You are missing a few libraries from your linking options: libssl depends on libcrypto, which in turn depends on libdl. All in all, you will need
-lboost_system -lssl -lcrypto -ldl -lpthread.
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