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scripts/env_use_destdir: fix Fedora support 

libselinux and libsemanage use:

    PYTHONLIBDIR ?= $(shell $(PYTHON) -c "from distutils.sysconfig
    import *; print(get_python_lib(plat_specific=1,
    prefix='$(PREFIX)'))")

while python/semanage and python/sepolgen/src/sepolgen use:

    PYTHONLIBDIR ?= $(shell $(PYTHON) -c "from distutils.sysconfig
    import *; print(get_python_lib(prefix='$(PREFIX)'))")

This is right: libselinux and libsemanage's Python bindings use native
code (thus "plat_specific=1") while the others only install Python
files.

Nevertheless `scripts/env_use_destdir` only runs the second command
when computing `$PYTHONPATH`. When using this script to run `make test`
in a minimal Fedora 31 environment, this leads to an error such as:

    make[2]: Entering directory '/code/python/sepolicy'
    Traceback (most recent call last):
      File "test_sepolicy.py", line 117, in <module>
        import selinux
    ModuleNotFoundError: No module named 'selinux'

Fix this by also adding `get_python_lib(plat_specific=1)` to the
computed `$PYTHONPATH`.

While at it, preserve `$PYTHONPATH` instead of resetting it. This makes
it easier to work with Python virtual environments.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
This commit is contained in:
Nicolas Iooss 2020-05-01 11:29:28 +02:00 committed by Petr Lautrbach
parent e0d4025530
commit e505694406
1 changed files with 8 additions and 2 deletions
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10
scripts/env_use_destdir
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@ -24,8 +24,14 @@ fi
export LD_LIBRARY_PATH="$DESTDIR/usr/lib:$DESTDIR/lib"
export PATH="$DESTDIR/usr/sbin:$DESTDIR/usr/bin:$DESTDIR/sbin:$DESTDIR/bin:$PATH"
# shellcheck disable=SC2155
export PYTHONPATH="$DESTDIR$(${PYTHON:-python3} -c "from distutils.sysconfig import *;print(get_python_lib(prefix='/usr'))")"
NEW_PYTHONPATH="$DESTDIR$(${PYTHON:-python3} -c "from distutils.sysconfig import *;print(get_python_lib(plat_specific=1, prefix='/usr'))"):$DESTDIR$(${PYTHON:-python3} -c "from distutils.sysconfig import *;print(get_python_lib(prefix='/usr'))")"
if [ -n "${PYTHONPATH:-}" ] ; then
# Prefix the PYTHONPATH with the new directories
export PYTHONPATH="$NEW_PYTHONPATH:$PYTHONPATH"
else
# Define PYTHONPATH
export PYTHONPATH="$NEW_PYTHONPATH"
fi
# shellcheck disable=SC2155
export RUBYLIB="$DESTDIR/$(${RUBY:-ruby} -e 'puts RbConfig::CONFIG["vendorlibdir"]'):$DESTDIR/$(${RUBY:-ruby} -e 'puts RbConfig::CONFIG["vendorarchdir"]')"