Thanks to the 2 previous patches of the series, BR_PATH contains
all locations in which host-packages may install programs.
This patch replaces the occurrences TARGET_PATH and HOST_PATH with
BR_PATH, everywhere these variables are used in the *.mk files.
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some packages need a host-python interpreter with a version different
from the one installed in the target to run some build scripts (eg.
scons requires python2 to run, to build any kind of packages even if
the python interpreter selected for the target is python3).
In such cases, we need to add the right host-python dependency to the
package using the host-python-package infrastructure, and we also want
to invoke the right host python interpreter during the build steps.
This patch adds a *_NEEDS_HOST_PYTHON variable that can be set either
to 'python2' or 'python3'. This variable can be set by any package
using the host-python-package infrastructure to force the python
interpreter for the build. This variable also takes care of setting
the right host-python dependency.
This *_NEEDS_HOST_PYTHON variable only affects packages using the
host-python-package infrastructure.
If some configure/build/install commands are overloaded in the *.mk
file, the right python interpreter should be explicitly called.
If the package defines some tool variable (eg.: SCONS), the variable
should explicitly call the right python interpreter.
[Thomas:
- fixes to the commit log and documentation suggested by Yann
- rename the variable from <pkg>_FORCE_HOST_PYTHON to
<pkg>_NEEDS_HOST_PYTHON, as suggested by Yann
- do not allow any other value than python2 and python3 in
<pkg>_NEEDS_HOST_PYTHON, as suggested by Yann.]
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit improves the Python package infrastructure to allow Python
packages to be built with Python 3. The changes are fairly simple:
* Use either PYTHON_PATH or PYTHON3_PATH as the PYTHONPATH depending
on which Python is used.
* Depend on host-python or host-python3 and python or python3
depending on which Python is used.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Thanks to the bump of Python 2.x, distutilscross is no longer needed
to achieve cross-compilation for setuptools packages. The host Python
2.x interpreter can be tricked into using the target compiler thanks
to pointing it to a different sysconfigdata module, which is achieved
using PYTHON_PATH.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Thanks to the Python 2.x bump, it is no longer needed to pass
PYTHONCPREFIX, and CROSS_COMPILING when building third-party Python
modules.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
With the upcoming bump of Python 2.x, it will become important that
the PYTHONPATH is passed whenever we build third-party packages, be
they using the distutils build mechanism, or the setuptools build
mechanism. This is because passing PYTHONPATH is what will allow
Python to find a special Python module that contains all the
compiler/library/headers definitions that are relevant when
cross-compiling.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Now that the Python package exposes its PYTHON_PATH variable, we can
use it in the package infrastructure. This prepares both the upcoming
bump of Python 2.x, and the introduction of Python 3 support in the
Python package infrastructure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit makes the dependency from the target toolchain explicit.
This way we can buid from command line a package that use
inner-generic-package right after the configuration phase, example:
make clean <package-name>
Also remove TARGETS_ALL because the only purpose was to add toolchain
dependency so it's superseded by this commit.
To prevent circular dependency add the new variable
<pkgname>_ADD_TOOLCHAIN_DEPENDENCY to avoid adding the toolchain
dependency for toolchain packages.
This is also a step forward supporting top-level parallel make.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The fourth parameter to inner-generic-package is no longer used. Removing
this parameters requires renaming all usages of $(5) to $(4), and updating
the calls to inner-generic-package (and equivalent for the other package
infrastructures).
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
When calling make 'functions', the $(call) keyword is only needed if the
function takes arguments. For pkgdir, pkgname and pkgparentdir this is not
the case, so we can remove the call to make things more readable.
Suggested-by: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit improves the cross-compilation patches we have on top of
Python, to fix the problem of host library paths leaking into the
build of target modules, as seen at:
http://autobuild.buildroot.org/results/fcc/fccd7e08cd9d4713eb4208097dd48c5ab25749bc/build-end.loghttp://autobuild.buildroot.org/results/0bd/0bda780bf4b759b12edec26ac20b88cde617db4d/build-end.log
To do so, it ensures that the right python2.7/config/Makefile is used
when building target modules, and adjusts at runtime the paths read
from this Makefile if we are cross-compiling.
In addition, it installs the pgen program into the host directory, and
points the target python build to use python and pgen from $(HOST_DIR)
instead of from the host python source directory, which looks cleaner.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Make the python packing a bit easier to use by providing a detailed error
message if <pkg>_SETUP_TYPE isn't set to a valid value.
At the same time adjust the error message used when <pkg>_SETUP_TIME isn't
set to list the exact variable name that should be set, and don't talk about
'Unknown' as it isn't printed when the variable isn't set (or is set to the
empty string).
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Peter: fix s/BUILD_TYPE/SETUP_TYPE/ typo in manual as noted by Samuel]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
