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Thomas Petazzoni d3c6db3622 python3: remove target Python packages from PYTHONPATH 
This commit is similar to 350941e31d
("python: remove target Python packages from PYTHONPATH") but for
python3.

We currently have
$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages/
inside the PYTHON3_PATH variable, which gets used to define
PYTHONPATH, passed to the host Python interpreter when
building/installing target packages.

However, this is terribly wrong, as it causes the host interpreter to
potentially import target Python packages. This is wrong for several
reasons:

 - Some Python packages might need some Python modules to be installed
   on the host (described in setup_requires in setup.py), but their
   installation currently works because by luck the corresponding
   Python module is installed for the target. Some of those cases were
   happening for real, and fixed by previous patches.

 - Some Python packages include some native code, therefore built for
   a specific CPU architecture. When you point the host Python
   interpreter to native libraries built for the target, you get nice
   build failures, such as the one affecting the python-cffi related
   packages.

This change fixes the following build failures:

   http://autobuild.buildroot.net/results/9005b89407e46b537a54cac6cc0c69dcac4dc5ea/
   (python-cryptography)

   http://autobuild.buildroot.net/results/395682d33d02fdcaa39d3c0326355bd9ea3d6feb/
   (python-pynacl)

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Tested-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-08-21 23:25:03 +02:00
arch arch/arm: add big.LITTLE cpu variants 2017-07-22 23:29:24 +02:00
board board: remove Armadeus's APF9328 support 2017-08-21 23:23:16 +02:00
boot boot/syslinux: fix i386 bios build with recent binutils 2017-08-16 22:54:03 +02:00
configs board: remove Armadeus's APF9328 support 2017-08-21 23:23:16 +02:00
docs Update for 2017.08-rc2 2017-08-11 22:36:39 +02:00
fs fs/iso9660: really create initrd temp dir 2017-08-15 17:50:11 +02:00
linux linux: bump default to version 4.12.8 2017-08-19 15:13:10 +02:00
package python3: remove target Python packages from PYTHONPATH 2017-08-21 23:25:03 +02:00
support support/testing: allow to use a multiplier for timeouts 2017-08-10 10:08:06 +02:00
system skeleton: Rename skeleton-sysv to skeleton-init-sysv 2017-08-14 21:52:45 +02:00
toolchain core/pkg-toolchain-external: quiesce spurious stderr 2017-08-19 15:06:45 +02:00
utils utils/readme.txt: add documentation of genrandconfig 2017-07-29 15:41:09 +02:00
.defconfig
.gitignore
.gitlab-ci.yml board: remove Armadeus's APF9328 support 2017-08-21 23:23:16 +02:00
.gitlab-ci.yml.in .gitlab-ci.yml: use large timeouts for runtime tests 2017-08-10 10:08:55 +02:00
CHANGES Update for 2017.08-rc2 2017-08-11 22:36:39 +02:00
Config.in Config.in: add BR2_HOST_GCC_AT_LEAST_7 2017-07-05 16:20:27 +02:00
Config.in.legacy binutils: remove support for 2.26 2017-08-01 23:38:05 +02:00
COPYING
DEVELOPERS configs/socrates_cyclone5: new defconfig 2017-08-02 21:45:26 +02:00
Makefile Update for 2017.08-rc2 2017-08-11 22:36:39 +02:00
Makefile.legacy
README

README 

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches