[pkgsrc/trunk]: pkgsrc/bootstrap bootstrap: Overhaul Darwin version selection.

[jperkin <jperkin%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/a1b5e6ffa3fc
branches:  trunk
changeset: 434964:a1b5e6ffa3fc
user:      jperkin <jperkin%pkgsrc.org@localhost>
date:      Mon Jun 29 12:38:03 2020 +0000

description:
bootstrap: Overhaul Darwin version selection.

With the upcoming Big Sur release we can't assume that the major version will
always be 10.  Creating a combined major and minor version number also allows
us to simplify and future-proof some tests.

Should be no functional change.

diffstat:

 bootstrap/bootstrap |  31 ++++++++++++++++---------------
 1 files changed, 16 insertions(+), 15 deletions(-)

diffs (61 lines):

diff -r 6b4e0d36cda2 -r a1b5e6ffa3fc bootstrap/bootstrap
--- a/bootstrap/bootstrap       Mon Jun 29 12:14:01 2020 +0000
+++ b/bootstrap/bootstrap       Mon Jun 29 12:38:03 2020 +0000
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# $NetBSD: bootstrap,v 1.282 2020/06/29 12:01:38 jperkin Exp $
+# $NetBSD: bootstrap,v 1.283 2020/06/29 12:38:03 jperkin Exp $
 #
 # Copyright (c) 2001-2011 Alistair Crooks <agc%NetBSD.org@localhost>
 # All rights reserved.
@@ -573,34 +573,35 @@
        whoamiprog='id -u'
        groupsprog='id -g'
        ;;
-
 Darwin)
        root_group=wheel
-       need_awk=yes
-       need_sed=yes
        machine_arch=`get_machine_arch_darwin`
        CC=${CC:-"cc -isystem /usr/include"}; export CC
        check_compiler=yes
        osrev=`uname -r`
-       macosx_version=`echo $osrev | awk -F . '{ print "10."$1-4; }'`
-       case "$macosx_version" in
-       10.[7-9])
+
+       # Combine major.minor product version for simpler numerical tests.
+       macos_version=`sw_vers -productVersion | awk -F. '{print $1 $2}'`
+
+       # Newer native sed does not support multibyte correctly.
+       if [ $macos_version -ge 1008 ]; then
+               need_awk=yes
+               need_sed=yes
+       fi
+
+       case "$macos_version" in
+       100[7-9])
                packagemaker=/Applications/PackageMaker.app/Contents/MacOS/PackageMaker
                ;;
-       10.[0-4])
+       100[0-4])
                packagemaker=/Developer/Tools/packagemaker
                ;;
        *)
                packagemaker=/Developer/usr/bin/packagemaker
                ;;
        esac
-       case "$macosx_version" in
-       10.[0-7])
-               need_awk=no
-               need_sed=no
-               ;;
-       esac
-       unset osrev macosx_version
+
+       unset osrev macos_version
        ;;
 DragonFly)
        root_group=wheel