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e9dafe7c93
- fix installer builds when using latest versions of Python 3 - fix installer builds on newer macOS releases with SIP - Python Launcher app factory defaults now use python3
90 lines
3.8 KiB
ReStructuredText
90 lines
3.8 KiB
ReStructuredText
Building a Python Mac OS X distribution
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=======================================
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The ``build-install.py`` script creates Python distributions, including
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certain third-party libraries as necessary. It builds a complete
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framework-based Python out-of-tree, installs it in a funny place with
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$DESTROOT, massages that installation to remove .pyc files and such, creates
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an Installer package from the installation plus other files in ``resources``
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and ``scripts`` and placed that on a ``.dmg`` disk image.
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The installer package built on the dmg is a macOS bundle format installer
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package. This format is deprecated and is no longer supported by modern
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macOS systems; it is usable on macOS 10.6 and earlier systems.
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To be usable on newer versions of macOS, the bits in the bundle package
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must be assembled in a macOS flat installer package, using current
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versions of the pkgbuild and productbuild utilities. To pass macoS
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Gatekeeper download quarantine, the final package must be signed
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with a valid Apple Developer ID certificate using productsign.
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Starting with macOS 10.15 Catalina, Gatekeeper now also requires
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that installer packages are submitted to and pass Apple's automated
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notarization service using the altool command. To pass notarization,
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the binaries included in the package must be built with at least
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the macOS 10.9 SDK, mout now be signed with the codesign utility
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and executables must opt in to the hardened run time option with
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any necessary entitlements. Details of these processes are
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available in the on-line Apple Developer Documentation and man pages.
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As of 3.8.0 and 3.7.7, PSF practice is to build one installer variants
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for each release. Note that as of this writing, no Pythons support
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building on a newer version of macOS that will run on older versions
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by setting MACOSX_DEPLOYMENT_TARGET. This is because the various
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Python C modules do not yet support runtime testing of macOS
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feature availability (for example, by using macOS AvailabilityMacros.h
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and weak-linking). To build a Python that is to be used on a
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range of macOS releases, always build on the oldest release to be
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supported; the necessary shared libraries for that release will
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normally also be available on later systems, with the occasional
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exception such as the removal of 32-bit libraries in macOS 10.15.
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build-installer requires Apple Developer tools, either from the
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Command Line Tools package or from a full Xcode installation.
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You should use the most recent version of either for the operating
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system version in use. (One notable exception: on macOS 10.6,
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Snow Leopard, use Xcode 3, not Xcode 4 which was released later
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in the 10.6 support cycle.)
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1. 64-bit, x86_64, for OS X 10.9 (and later)::
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/path/to/bootstrap/python2.7 build-installer.py \
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--universal-archs=intel-64 \
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--dep-target=10.9
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- builds the following third-party libraries
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* OpenSSL 1.1.1
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* Tcl/Tk 8.6
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* NCurses
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* SQLite
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* XZ
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* libffi
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- uses system-supplied versions of third-party libraries
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* readline module links with Apple BSD editline (libedit)
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* zlib
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* bz2
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- recommended build environment:
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* Mac OS X 10.9.5
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* Xcode Command Line Tools 6.2
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* ``MacOSX10.9`` SDK
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* ``MACOSX_DEPLOYMENT_TARGET=10.9``
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* Apple ``clang``
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General Prerequisites
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---------------------
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* No Fink (in ``/sw``) or MacPorts (in ``/opt/local``) or Homebrew or
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other local libraries or utilities (in ``/usr/local``) as they could
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interfere with the build.
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* It is safest to start each variant build with an empty source directory
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populated with a fresh copy of the untarred source or a source repo.
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* It is recommended that you remove any existing installed version of the
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Python being built::
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sudo rm -rf /Library/Frameworks/Python.framework/Versions/n.n
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