bpo-32726: macOS installer changes for 3.6.5

Backport the new 10.9+ installer variant from 3.7.  This variant features
more modern options; like 64-bit only (Apple is deprecating 32-bit support
in future macOS releases); a built-in version of Tcl/Tk 8.6.8; built with
clang rather than gcc-4.2.  For 3.6.5, the 10.9+ variant will be offered
as an additional alternative to the traditional 10.6+ variant in earlier
3.6.x releases.  Binary extension modules (including wheels) built for
earlier versions of 3.6.x with the 10.6 variant should continue to work
with either 3.6.5 variant without recompilation.

In addition, both installer variants have updated 3rd-party libraries:
OpenSSL 1.0.2m -> 1.0.2n
XZ 5.2.2 -> 5.2.3
SQLite 3.21.0 -> 3.22.0

Also the 10.6 variant now sets CC=gcc instead of CC=gcc-4.2 and does not
search for the outdated 10.6 SDK.  The variant is built with the same
compiler as before.  As before, for extension module builds, the CC can
be overridden with the CC env variable and an SDK can be specified
with the SDKROOT env variable (see man xcrun).  These minor changes
should be transparent to nearly all users.

1 files changed, 11 insertions, 21 deletions

diff --git a/Mac/BuildScript/resources/Welcome.rtf b/Mac/BuildScript/resources/Welcome.rtf
index 3a9ab04..cac9626 100644
--- a/Mac/BuildScript/resources/Welcome.rtf
+++ b/Mac/BuildScript/resources/Welcome.rtf
@@ -1,34 +1,24 @@
-{\rtf1\ansi\ansicpg1252\cocoartf1504
+{\rtf1\ansi\ansicpg1252\cocoartf1561\cocoasubrtf200
 \cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
 {\colortbl;\red255\green255\blue255;}
-{\*\expandedcolortbl;\csgray\c100000;}
+{\*\expandedcolortbl;;}
 \paperw11905\paperh16837\margl1440\margr1440\vieww12200\viewh10880\viewkind0
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
 
 \f0\fs24 \cf0 This package will install 
 \b Python $FULL_VERSION
 \b0  for 
-\b Mac OS X $MACOSX_DEPLOYMENT_TARGET
+\b macOS $MACOSX_DEPLOYMENT_TARGET
 \b0 .\
-\
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
+\cf0 \
 
-\b Python for Mac OS X
-\b0  consists of the Python programming language interpreter, plus a set of programs to allow easy access to it for Mac OS X users including an integrated development environment 
+\b Python for macOS
+\b0  consists of the Python programming language interpreter, plus a set of programs to allow easy access to it for macOS users including an integrated development environment 
 \b IDLE
 \b0 .\
 \
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
-
-\b \cf0 NEW:
-\b0   There are important changes in this release regarding network security and trust certificates.  Please see the ReadMe for more details.\
-\
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\partightenfactor0
 
-\b \cf0 IMPORTANT:
-\b0  
-\b IDLE
-\b0  and other programs using the 
-\b tkinter
-\b0  graphical user interface toolkit require specific versions of the 
-\b Tcl/Tk
-\b0  platform independent windowing toolkit.  Visit {\field{\*\fldinst{HYPERLINK "https://www.python.org/download/mac/tcltk/"}}{\fldrslt https://www.python.org/download/mac/tcltk/}} for current information on supported and recommended versions of Tcl/Tk for this version of Python and Mac OS X.}
\ No newline at end of file
+\b NEW in 3.6.5: 
+\b0 two installer variants (10.9+ 64-bit-only, 10.6+ 64-/32-bit), built-in Tcl/Tk 8.6 support in the 10.9+ variant (no additional third-party downloads!)\
+}
\ No newline at end of file