如何使用自制软件的openSSL在macOS上编译Python 3.6.2? [英] How can I compile Python 3.6.2 on macOS with openSSL from homebrew?

问题描述

我正在尝试根据 https://bugs上的说明在macOS 10.11上编译Python 3.6.2. python.org/issue29095 .

我使用自制软件将openSSL安装到标准位置，然后将LDFLAGS，CFLAGS和CPPFLAGS添加到我的环境中:

I've used homebrew to install openSSL to the standard location and then added LDFLAGS, CFLAGS, and CPPFLAGS to my env:

$ printenv | grep FLAGS
LDFLAGS=/usr/local/Cellar/openssl/1.0.2l/lib/
CFLAGS=-I/usr/local/Cellar/openssl/1.0.2l/include/openssl
CPPFLAGS=-I/usr/local/Cellar/openssl/1.0.2l/include/openssl

然后在同一外壳中，将Python编译为用例所需的自定义位置:

Then in that same shell, I compile Python to the custom location required for my use case:

$ sudo ./configure --prefix=/oebuild/python/python-3.6.1
$ sudo make
$ sudo make install

但是，没有构建SSL模块.生成日志说明:

However, the SSL module doesn't get built. The build log says this:

Python构建成功完成！ 找不到构建这些可选模块的必要位: _gdbm _ssl ossaudiodev
spwd
要找到必要的位，请在detect_modules()的setup.py中查找模块的名称.

Python build finished successfully! The necessary bits to build these optional modules were not found: _gdbm _ssl ossaudiodev
spwd
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

推荐答案

我之前发现的以前的答案都没有为我工作，但最终我还是借助了前面没有提到的另一个答案来弄清楚了.这是实际的解决方法: https://stackoverflow.com/a/20740964/2934226

None of the previous answers I found earlier worked for me, but I did eventually figure this out with the help of another answer not mentioned earlier. Here was the actual fix: https://stackoverflow.com/a/20740964/2934226

基本上，不能在环境中设置CPPFLAGS和LDFLAGS；您需要在configure命令旁边进行设置，例如:

Basically, CPPFLAGS and LDFLAGS can't be set in the environment; you need to set them alongside the configure command, like this:

./configure CPPFLAGS="-I[openSSL install location]/include" LDFLAGS="-L[openSSL install location]/lib" [other flags here]

然后在编译和安装后就可以了！

And then after compiling and installing, it worked!

$ python3 -c "import ssl; print(ssl.OPENSSL_VERSION)"
OpenSSL 1.0.2l  25 May 2017

这是不起作用的原因，以及原因:

Here are the things that didn't work, and why:

如何使用自定义OpenSSL编译Python 3.4 没有帮助，因为您无法在环境中设置LDFLAGS，CFLAGS或CPPFLAGS； setup.py不会将它们传递给实际的编译步骤.即使设置LD_LIBRARY_PATH可能可行，您也不想这样做，因为这很危险(请参阅 http: //xahlee.info/UnixResource_dir/_/ldpath.html ).最后，--with-ssl不是有效的configure参数，并且在那里列出的添加补丁并不干净.

How do I compile Python 3.4 with custom OpenSSL? doesn't help because you can't set LDFLAGS, CFLAGS, or CPPFLAGS in the environment; setup.py doesn't pass them along to the actual compilation steps. And even if setting LD_LIBRARY_PATH might work, you don't want to do that because it's dangerous (see http://xahlee.info/UnixResource_dir/_/ldpath.html). Finally, --with-ssl isn't a valid configure argument, and the patch listed there to add it doesn't apply cleanly.

拒绝链接OpenSSL的自制程序不适用于尝试从源代码构建一些东西，而不是尝试获取已经编译的dylib来查找重定位的库.此外，在/usr/local中建立符号链接是很危险的，并且可能导致程序针对较新的标头进行编译，但使用较旧的系统二进制文件.

Homebrew refusing to link OpenSSL doesn't apply when you're trying to build something from source, rather than trying to get an an already-compiled dylib to find a relocated library. Furthermore, making symlinks in /usr/local is dangerous, and can cause programs to compile against the newer headers but use the older system binaries.

如何在MacOS上将ssl与python构建一起包括无法正常工作.编辑setup.py以添加lib并包含部分安装了 的openSSL的目录，并允许您编译SSL支持. las，由于旧版本仍在使用中，因此它们不可导入:

how to include ssl with python build on MacOS doesn't work properly. Editing setup.py to add the lib and include directories for where you've installed my openSSL partially works, and lets you compile in SSL support. Alas, they aren't importable because the old version is still getting used:

Following modules built successfully but were removed because they could not be imported:
_hashlib              _ssl                                    

[...]

building '_ssl' extension
gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -I/usr/local/opt/openssl/include/ -I./Include -I/oebuild/python/python-3.6.1/include -I. -I/usr/local/include -I/oebuild/python/src/Python-3.6.1/Include -I/oebuild/python/src/Python-3.6.1 -c /oebuild/python/src/Python-3.6.1/Modules/_ssl.c -o build/temp.macosx-10.11-x86_64-3.6/oebuild/python/src/Python-3.6.1/Modules/_ssl.o
gcc -bundle -undefined dynamic_lookup build/temp.macosx-10.11-x86_64-3.6/oebuild/python/src/Python-3.6.1/Modules/_ssl.o -L/oebuild/python/python-3.6.1/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin.so
building '_hashlib' extension
gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -I/usr/local/opt/openssl/include/ -I./Include -I/oebuild/python/python-3.6.1/include -I. -I/usr/local/include -I/oebuild/python/src/Python-3.6.1/Include -I/oebuild/python/src/Python-3.6.1 -c /oebuild/python/src/Python-3.6.1/Modules/_hashopenssl.c -o build/temp.macosx-10.11-x86_64-3.6/oebuild/python/src/Python-3.6.1/Modules/_hashopenssl.o
gcc -bundle -undefined dynamic_lookup build/temp.macosx-10.11-x86_64-3.6/oebuild/python/src/Python-3.6.1/Modules/_hashopenssl.o -L/oebuild/python/python-3.6.1/lib -L/usr/local/lib -lssl -lcrypto -o build/lib.macosx-10.11-x86_64-3.6/_hashlib.cpython-36m-darwin.so
*** WARNING: renaming "_ssl" since importing it failed: dlopen(build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin.so, 2): Symbol not found: _CRYPTO_THREADID_set_callback
  Referenced from: build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin.so
  Expected in: flat namespace
 in build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin.so
*** WARNING: renaming "_hashlib" since importing it failed: dlopen(build/lib.macosx-10.11-x86_64-3.6/_hashlib.cpython-36m-darwin.so, 2): Symbol not found: _HMAC_CTX_copy
  Referenced from: build/lib.macosx-10.11-x86_64-3.6/_hashlib.cpython-36m-darwin.so
  Expected in: flat namespace
 in build/lib.macosx-10.11-x86_64-3.6/_hashlib.cpython-36m-darwin.so

otool -L显示了问题:

$ otool -L build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin_failed.so 
build/lib.macosx-10.11-x86_64-3.6/_ssl.cpython-36m-darwin_failed.so:
    /usr/lib/libssl.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8)
    /usr/lib/libcrypto.0.9.8.dylib (compatibility version 0.9.8, current version 0.9.8)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1226.10.1)

(根据 https版，在1.0.0版中引入了CRYPTO_THREADID ://wiki.openssl.org/index.php/Manual:Threads(3)#HISTORY )

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