Since commit 83e92b4a97, utils.c
includes "ignore-value.h". We copy utils.c into the python sdist
tarball, but it didn't not compile because of the missing header file.
Therefore we need to copy the header in too.
Fixes commit 83e92b4a97.
This is not used by libguestfs right now, but it does allow you to
build a python "distribution" of libguestfs, like this:
make -C python sdist
The distribution tarball will be in python/dist/
You can copy the distribution tarball somewhere, unpack it, and use
regular 'python setup.py' commands such as:
python setup.py build
python setup.py install [--prefix=...]
python setup.py --name
In future we hope to be able to upload the distribution tarball to
PyPi, but licensing issues prevent this at present.
