configure: Update python search order

Peter Eisentraut <peter@eisentraut.org>

Commit: 7291733ac93fbc7a30255a7543729678d29afc21
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2019-01-13T09:23:48Z
Releases: 12.0
configure: Update python search order

Some systems don't ship with "python" by default anymore, only
"python3" or "python2" or some combination, so include those in the
configure search.

Discussion: https://www.postgresql.org/message-id/flat/1457.1543184081%40sss.pgh.pa.us#c9cc1199338fd6a257589c6dcea6cf8d

Files

PathChange+/−
config/python.m4 modified +8 −1
configure modified +1 −1
doc/src/sgml/installation.sgml modified +2 −1

Documentation touched

Discussion

Cited messages not in the archive: 1457.1543184081@sss.pgh.pa.us#c9cc1199338fd6a257589c6dcea6cf8d