如何使用自定义OpenSSL编译Python 3.4？

Question

我在一个非标准的位置安装了自己的OpenSSL（为了这个例子，/my/path），我希望在针对源代码编译Python 3.4时能够针对这个目标进行构建。我试过的是这个（目录缩写）

CPPFLAGS="-I/my/path/include -I/my/path/include/openssl" ./configure --prefix=/my/path/

我还尝试了C_INCLUDE_PATH和冒号分隔的路径。

然后，我运行make并得到：

building '_ssl' extension
gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I./Include -I. -IInclude -I/my/path/include -I/my/path/include/openssl -I/usr/local/include -I/my/path/Python-3.4.0/Include -I/my/path/Python-3.4.0 -c /my/path/Python-3.4.0/Modules/_ssl.c -o build/temp.linux-x86_64-3.4/my/path/Python-3.4.0/Modules/_ssl.o
gcc -pthread -shared build/temp.linux-x86_64-3.4/my/path/Python-3.4.0/Modules/_ssl.o -L/my/path/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.linux-x86_64-3.4/_ssl.cpython-34m.so
*** WARNING: renaming "_ssl" since importing it failed: build/lib.linux-x86_64-3.4/_ssl.cpython-34m.so: undefined symbol: SSL_get0_next_proto_negotiated

它在寻找SSL_get0_next_proto_negotiated，但这是最确定的定义：

$ grep SSL_get0_next_proto_negotiated /my/path/include/openssl/*
/my/path/include/openssl/ssl.h:void SSL_get0_next_proto_negotiated(const SSL *s,

我不知道我做错了什么，有什么想法吗？

Answer 1

我做了很多次头发拉扯后终于弄明白了。是一堆环境变量。。。我想我可能做得有点过头了，但这基本上起作用了：

# OpenSSL 1.0.1g
./config shared --prefix=/my/path --openssldir=/my/path/openssl
make
make install

# Python 3.4
export LDFLAGS="-L/my/path/lib/ -L/my/path/lib64/"
export LD_LIBRARY_PATH="/my/path/lib/:/my/path/lib64/"
export CPPFLAGS="-I/my/path/include -I/my/path/include/openssl"
./configure --prefix=/my/path/
make
make install

Answer 2

这就是我在3.4中解决它的方法。适用于2.7和3.4。重要的是./configure中的--with ssl config参数：

wget https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgz
tar -xf Python-3.4.3.tgz
cd Python-3.4.3/
sudo yum install gcc
./configure --with-ssl
make && make install
# If you like to live dangerously since this will overwrite default python executable
make && make altinstall
# Safer because you access your new Python using python3.4

Answer 3

谢谢@ScottFrazer的回答。帮我省了很多麻烦。

这是我在ubuntu中用最新的openssl 1.0.2g编译python的脚本。

# new openssl install
curl https://www.openssl.org/source/openssl-1.0.2g.tar.gz | tar xz && cd openssl-1.0.2g && ./config shared --prefix=/usr/local/ && make && make install

# Python install script
export LDFLAGS="-L/usr/local/lib/"
export LD_LIBRARY_PATH="/usr/local/lib/"
export CPPFLAGS="-I/usr/local/include -I/usr/local/include/openssl"
apt-get update
apt-get install build-essential checkinstall -y
apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev -y
cd /home/web/
wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz | tar xzf Python-2.7.11.tgz && cd Python-2.7.11 
./configure --prefix=/usr/local/ 
make altinstall

注意，安装是一个altinstall这意味着它将而不是覆盖ubuntu上的默认python。要验证安装是否成功：

/usr/local/bin/python2.7
>>> import ssl
>>> ssl.OPENSSL_VERSION
'OpenSSL 1.0.2g  1 Mar 2016'