makefile: use Python 3 by default (BC)
This change is long overdue IMO.
.. bc::
Makefile now uses `python3` instead of `python` by default on
non-Windows platforms. This means Mercurial will be built and
run with Python 3 instead of Python 2.7 by default.
To continue using Python 2, set the PYTHON variable. e.g.
`make install PYTHON=python2.7`.
Differential Revision: https://phab.mercurial-scm.org/D7258
#!/bin/sh
HGENCODING=UTF-8
export HGENCODING
echo ".. -*- coding: utf-8 -*-" > gendoc.txt
echo "" >> gendoc.txt
LANGUAGE=$1 "$PYTHON" "$TESTDIR/../doc/gendoc.py" >> gendoc.txt 2> /dev/null || exit
echo "checking for parse errors"
"$PYTHON" "$TESTDIR/../doc/docchecker" gendoc.txt
"$PYTHON" "$TESTDIR/../doc/runrst" html gendoc.txt /dev/null