Installing Python 3.7 on Freebsd 11 with ssl

Question

I am trying to install Python 3.7 on Freebsd 11.1 with ssl support.

Attempt #1: The pre-built binary won't run due to libdl.so.1 not found

pkg install python37
...
root@s0001:~ # python3.7
Shared object "libdl.so.1" not found, required by "python3.7"

Attempt #2: I downloaded the python 3.7 source and attempted to build with defaults but ssl module not found

./configure
make
...
Python build finished successfully!
The necessary bits to build these optional modules were not found:
_gdbm                 _sqlite3              _ssl
_tkinter              spwd
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

Attempt #3: I noticed there is source for openssl 1.1.1 inside the python tarball so I tried --with-openssl, but got compiler errors:

./configure --with-openssl=openssl-1.1.1
make

openssl-1.1.1/include/openssl/bn.h:332:1: error: expected function body after function declarator

DEPRECATEDIN_0_9_8(int
^
openssl-1.1.1/include/openssl/bn.h:403:1: error: expected function body after function declarator
DEPRECATEDIN_0_9_8(int BN_get_params(int which)) /* 0, mul, 1 high, 2 low, 3
^
In file included from /root/Python-3.7.0/Modules/_hashopenssl.c:23:
In file included from openssl-1.1.1/include/openssl/evp.h:28:
In file included from openssl-1.1.1/include/openssl/objects.h:15:

It seems like installing Python with ssl support (I would think using the openssl that comes in the tarball) should be straightforward. What is the correct way to do this?

Answer 1

I've got it working.

I needed to run

pkg install openssl

and then I was able to build and install using the defaults (ie following Attempt #2)

Answer 2

I had the same problem, but I chose to upgrade FreeBSD rather than rebuilding python.

FreeBSD 11.2 added libdl in this commit, which we see in the 11.2 source but not the 11.1 source (404). Since 2018-09-30, 11.1 has been unsupported.

So, this package and potentially other packages could have the same symptom (libdl missing) on 11.1 because ongoing package builds no longer need to support 11.1.