From 4a750134d0e82bf5e843bcde03a28c4ef7e6c036 Mon Sep 17 00:00:00 2001
From: Ray Donnelly <mingw.android@gmail.com>
Date: Fri, 2 Oct 2020 00:03:12 +0200
Subject: [PATCH 09/25] cross compile darwin

By Isuru Fernando.
---
 Lib/platform.py | 7 ++++++-
 configure       | 6 ++++++
 configure.ac    | 6 ++++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Lib/platform.py b/Lib/platform.py
index 784b6b749b7..9918b4106e8 100644
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -477,7 +477,12 @@ def win32_ver(release='', version='', csd='', ptype=''):
 def _mac_ver_xml():
     fn = '/System/Library/CoreServices/SystemVersion.plist'
     if not os.path.exists(fn):
-        return None
+        if 'SDKROOT' in os.environ:
+            fn = os.environ['SDKROOT'] + fn
+            if not os.path.exists(fn):
+                return None
+        else:
+            return None
 
     try:
         import plistlib
diff --git a/configure b/configure
index d31c24dffa2..1e4cf61234b 100755
--- a/configure
+++ b/configure
@@ -4110,6 +4110,9 @@ then
 	*-*-linux*)
 		ac_sys_system=Linux
 		;;
+	*-*-darwin*)
+		ac_sys_system=Darwin
+		;;
 	*-*-cygwin*)
 		ac_sys_system=Cygwin
 		;;
@@ -4589,6 +4592,9 @@ if test "$cross_compiling" = yes; then
 			_host_ident=$host_cpu
 		esac
 		;;
+	*-*-darwin*)
+		_host_ident=$host_cpu
+		;;
 	*-*-cygwin*)
 		_host_ident=
 		;;
diff --git a/configure.ac b/configure.ac
index af7a9623d7b..e7a4bb5b998 100644
--- a/configure.ac
+++ b/configure.ac
@@ -324,6 +324,9 @@ then
 	*-*-linux*)
 		ac_sys_system=Linux
 		;;
+	*-*-darwin*)
+		ac_sys_system=Darwin
+		;;
 	*-*-cygwin*)
 		ac_sys_system=Cygwin
 		;;
@@ -771,6 +774,9 @@ if test "$cross_compiling" = yes; then
 			_host_ident=$host_cpu
 		esac
 		;;
+	*-*-darwin*)
+		_host_ident=$host_cpu
+		;;
 	*-*-cygwin*)
 		_host_ident=
 		;;