configure: Update python search order
authorPeter Eisentraut <peter@eisentraut.org>
Fri, 11 Jan 2019 14:45:15 +0000 (15:45 +0100)
committerPeter Eisentraut <peter@eisentraut.org>
Sun, 13 Jan 2019 09:23:48 +0000 (10:23 +0100)
commit7291733ac93fbc7a30255a7543729678d29afc21
tree22e6ca502ff0a0794f20c55067d2226e6aaa8f30
parent0acb3bc33af11a57d560cbce5a74246eb3e642db
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
config/python.m4
configure
doc/src/sgml/installation.sgml