Co-authored-by: Lawrence D’Anna <lawrence_danna@apple.com>
* Add support for macOS 11 and Apple Silicon (aka arm64)
As a side effect of this work use the system copy of libffi on macOS, and remove the vendored copy
* Support building on recent versions of macOS while deploying to older versions
This allows building installers on macOS 11 while still supporting macOS 10.9.
build-installer now looks in its directory of source tarballs
for a suitable html tarball of the same version. If so, it
will unpack and use it rather than rebuilding the html format
documentation set from the source repo. This is intended as
a speedup for test builds of the installer. Files names must
be in the same format as produced by the docs build for download,
for example, `python-3.9.0b1-docs-html.tar.bz2`.
Reason: the link `ftp://invisible-island.net/ncurses//5.9/ncurses-5.9-20120616-patch.sh.bz2` is dead, which prevents `Mac/BuildScript/build-installer.py` from completing. Looks like the host of the FTP server was changed to `ftp.invisible-island.net`, thus this proposal.
Signed-off-by: oleg.hoefling <oleg.hoefling@gmail.com>
Previously, python.org macOS installers did not alter the Current version
symlink in /Library/Frameworks/Python.framework/Versions when installing
a version of Python 3.x, only when installing 2.x. Now that Python 2 is
retired, it's time to change that. This should make it a bit easier
to embed Python 3 into other macOS applications.
