Fix: babeltrace-log packet seek
[babeltrace.git] / m4 / check_sphinx.m4
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17137804
PP
1# check_sphinx.m4 -- check for Sphinx Python package
2#
3# Copyright (C) 2015 - Philippe Proulx <pproulx@efficios.com>
4#
5# This file is free software; the Free Software Foundation gives
6# unlimited permission to copy and/or distribute it, with or without
7# modifications, as long as this notice is preserved.
8
9# Sphinx ships with a script named "sphinx-build", which is usually
10# installed in "/usr/bin". Unfortunately, this script uses
11# "/usr/bin/python" as its interpreter. Since "/usr/bin/python" can
12# be either Python 2 or Python 3, depending on the distribution, and
13# since we absolutely need the Python 3 Sphinx package for Babeltrace
14# because it needs to import our bindings for autodocumentation,
15# there's no way to tell if "sphinx-build" is actually using Python 2
16# or Python 3.
17#
18# This macro checks if the Sphinx package ("sphinx") is installed
19# and visible from the interpreter designated by the PYTHON variable.
20# It sets PYTHON_SPHINX_EXISTS to "yes" if Sphinx is found for the
21# given Python interpreter, otherwise "no".
22
23# AM_CHECK_PYTHON_SPHINX(PYTHON)
24# ---------------------------------------------------------------------------
25AC_DEFUN([AM_CHECK_PYTHON_SPHINX],
26 [prog="
27try:
28 import sphinx
29 print('yes')
30except ImportError:
31 print('no')"
32 PYTHON_SPHINX_EXISTS=`${$1} -c "$prog"`])
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