From: Thomas Petazzoni Date: Sat, 19 Aug 2017 21:11:50 +0000 (+0200) Subject: python3: remove target Python packages from PYTHONPATH X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d3c6db36227e315d13c0e8414f03d3f629572173;p=buildroot.git python3: remove target Python packages from PYTHONPATH This commit is similar to 350941e31de5b454cad75abe5fb0d3db027bc1a7 ("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 Reviewed-by: Yegor Yefremov Tested-by: Yegor Yefremov Signed-off-by: Thomas Petazzoni --- diff --git a/package/python3/python3.mk b/package/python3/python3.mk index 80905ddbfc..a18dc7faac 100644 --- a/package/python3/python3.mk +++ b/package/python3/python3.mk @@ -232,7 +232,7 @@ HOST_PYTHON3_POST_INSTALL_HOOKS += HOST_PYTHON3_INSTALL_SYMLINK endif # Provided to other packages -PYTHON3_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/:$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/site-packages/ +PYTHON3_PATH = $(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)/ $(eval $(autotools-package)) $(eval $(host-autotools-package))