export PYTHONOPTIMIZE=2 breaks make install

[Дилян Палаузов]

In my chroot/virtualenv I use only PYTHONOPTIMIZE=2, so I want to utilize it also when installing xapian-bindings for python3. Calling

export PYTHONOPTIMIZE=2
./configure --with-python3 --prefix=/home/mailmanweb PYTHON3_LIB=/home/mailmanweb/lib/python3.10/site-packages
make install

fails with

 /usr/bin/mkdir -p '/home/mailmanweb/lib/python3.10/site-packages/xapian'
 /usr/bin/install -c -m 644 xapian/__init__.py ../../python3/xapian/__pycache__/__init__.cpython-310.pyc xapian/__pycache__/__init__.cpython-310.opt-2.pyc '/home/mailmanweb/lib/python3.10/site-packages/xapian'
/usr/bin/install: cannot stat '../../python3/xapian/__pycache__/__init__.cpython-310.pyc': No such file or directory
make[4]: *** [Makefile:822: install-pkgpylibDATA] Error 1

Indeed, make has created python3/xapian/__pycache__/__init__.cpython-310.opt-2.pyc and there is no python3/xapian/__pycache__/__init__.cpython-310.pyc file.

[Olly Betts]

It looks like the problem here is that forcing PYTHONOPTIMIZE=2 also affects the command which is trying to generate an unoptimised .pyc and we instead generate xapian/__pycache__/__init__.cpython-312.opt-2.pyc twice.

The simplest fix is probably for us to override PYTHONOPTIMIZE for that command.

If you want a workaround for current releases then not setting PYTHONOPTIMIZE=2 and doing sed -i 's/$(PYTHON3) -O/&2/' python3/Makefile after configure but before make should work.

[Дилян Палаузов]

The simplest fix is probably for us to override PYTHONOPTIMIZE for that command.

I want to install __pycache__/__init__.cpython-310.opt-2.pyc and not to create or install __pycache__/__init__.cpython-310.pyc.