如何使用自定义 OpenSSL 编译 Python 3.4？

Question

我在非标准位置安装了自己的 OpenSSL（在此示例中为 /my/path），并且我希望 Python 3.4 在针对源代码编译时构建它。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/

我也尝试使用C_INCLUDE_PATH 和冒号分隔的路径。

然后，我运行 make 并得到这个：

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

它正在寻找SSL_get0_next_proto_negotiated，但这是最肯定的定义：

$ 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,

我不确定我做错了什么，有什么想法吗？

Answer 1

经过大量的拉扯，我设法弄明白了。这是一堆环境变量......我想我可能做得有点过头了，但这基本上奏效了：

# 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

感谢@ScottFrazer 的回答。为我省去了很多麻烦。

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，这意味着它不会覆盖 ubuntu 上的默认 python。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'

Answer 3

这就是我在 3.4 中解决它的方法。它适用于 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