From: Philippe Proulx Date: Mon, 29 Jul 2019 19:32:08 +0000 (-0400) Subject: configure.ac: refine Python 3 interpreter and dev. libraries detection X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=419fff0b17e4e304f5a831115cfbcdb85ec34056;hp=419fff0b17e4e304f5a831115cfbcdb85ec34056;p=babeltrace.git configure.ac: refine Python 3 interpreter and dev. libraries detection This patch refines how the `configure` script detects the Python 3 interpreter and development libraries. The goal is to clean up this part of `configure.ac` and to make the Python 3 interpreter available as a general tool for testing, even without building the Python bindings or the Python plugin provider. Before this patch, `configure` ensures that the Python interpreter and the development libraries exist and are valid if you use the `--enable-python-bindings` or `--enable-python-plugins` option. With this patch, `configure` always tries to find the Python interpreter. If it finds it, it sets the local `have_python` shell variable and defines the `HAVE_PYTHON` Automake definition. If `configure` finds the Python interpreter, it always tries to find `python-config`. It if finds it, it sets the local `have_python_dev` shell variable and defines the `HAVE_PYTHON_DEV` Automake definition. You can still override the include directories and linker flags with the `PYTHON_INCLUDE` and `PYTHON_LDFLAGS` environment variables. Now, if you specify the `--enable-python-bindings` or `--enable-python-plugins` option, `$have_python_dev` must be `yes`. What used to be `HAVE_PYTHON` (Automake definition) is renamed to `ENABLE_PYTHON_COMMON_DEPS`: this is defined if we need to build any common Python dependency. As of this patch, the only one is the internal `py-common` convenience library. In the final `configure` report, I added: * Whether or not the Python interpreter was found and its path. * Whether or not the `python-config` program (called "development libraries") was found and its path. This patch was only tested manually, locally removing the Python interpreter, the `python-config` program, and passing the `--enable-python-bindings` or `--enable-python-plugins` option to test the different `configure` paths. Signed-off-by: Philippe Proulx Change-Id: Id0ac60ebc97a9ce2951aee713eccdc24c19d3791 Reviewed-on: https://review.lttng.org/c/babeltrace/+/1799 Tested-by: jenkins Reviewed-by: Michael Jeanson ---