make install may not call ldconfig on GNU/Linux when using --enable-shared

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2018-11-13.13:56:20.471>
labels = ['3.7', 'type-bug', 'expert-installation']
title = 'make install may not call ldconfig on GNU/Linux when using --enable-shared'
updated_at = <Date 2018-11-13.14:10:26.129>
user = 'https://github.com/pmp-p'

bugs.python.org fields:

activity = <Date 2018-11-13.14:10:26.129>
actor = 'pmpp'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Installation']
creation = <Date 2018-11-13.13:56:20.471>
creator = 'pmpp'
dependencies = []
files = []
hgrepos = []
issue_num = 35231
keywords = []
message_count = 1.0
messages = ['329840']
nosy_count = 1.0
nosy_names = ['pmpp']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue35231'
versions = ['Python 3.7']