[2.7] Backport macOS universal build and installer fixes from 3.6. by ned-deily · Pull Request #6469 · python/cpython (original) (raw)

These include:

• bpo-32726: Provide an additional, more modern macOS installer variant that
  supports macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied
  third-party libraries to OpenSSL 1.0.2n and SQLite 3.22.0. The 10.9+
  installer now supplies its own private copy of Tcl/Tk 8.6.8.
• bpo-24414: Default macOS deployment target is now set by configure to
  the build system's OS version (as is done by Python 3), not 10.4;
  override with, for example, ./configure MACOSX_DEPLOYMENT_TARGET=10.4.
• bpo-19019: All 2.7 macOS installer variants now supply their own version
  of OpenSSL 1.0.2; the Apple-supplied SSL libraries and root
  certificates are not longer used. The Installer Certificate command
  in /Applications/Python 2.7 may be used to download and install a
  default set of root certificates from the third-party certifi package.
• bpo-11485: python.org macOS Pythons no longer supply a default SDK value
  (e.g. -isysroot /) or specific compiler version default (e.g.
  gcc-4.2) when building extension modules. Use CC, SDKROOT,
  and DEVELOPER_DIR environment variables to override compilers or to
  use an SDK. See Apple's xcrun man page for more info.
• prepare for pending Apple removal of 32-bit support in future macOS release

These include:

• bpo-32726: Provide an additional, more modern macOS installer variant that supports macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied third-party libraries to OpenSSL 1.0.2n and SQLite 3.22.0. The 10.9+ installer now supplies its own private copy of Tcl/Tk 8.6.8.

• bpo-24414: Default macOS deployment target is now set by configure to the build system's OS version (as is done by Python 3), not 10.4; override with, for example, ./configure MACOSX_DEPLOYMENT_TARGET=10.4.

• bpo-19019: All 2.7 macOS installer variants now supply their own version of OpenSSL 1.0.2; the Apple-supplied SSL libraries and root certificates are not longer used. The Installer Certificate command in /Applications/Python 2.7 may be used to download and install a default set of root certificates from the third-party certifi package.

• bpo-11485: python.org macOS Pythons no longer supply a default SDK value (e.g. -isysroot /) or specific compiler version default (e.g. gcc-4.2) when building extension modules. Use CC, SDKROOT, and DEVELOPER_DIR environment variables to override compilers or to use an SDK. See Apple's xcrun man page for more info.

• prepare for pending Apple removal of 32-bit support in future macOS release