patch-apple-cross-3.12.patch

diff --git a/configure.ac b/configure.ac
index c62a565eb6..7e5d34632c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -545,6 +545,15 @@ then
 	*-*-cygwin*)
 		ac_sys_system=Cygwin
 		;;
+	*-apple-ios*)
+		ac_sys_system=iOS
+		;;
+	*-apple-tvos*)
+		ac_sys_system=tvOS
+		;;
+	*-apple-watchos*)
+		ac_sys_system=watchOS
+		;;
 	*-*-vxworks*)
 	    ac_sys_system=VxWorks
 	    ;;
@@ -600,6 +609,19 @@ if test "$cross_compiling" = yes; then
 	*-*-cygwin*)
 		_host_cpu=
 		;;
+	*-*-darwin*)
+		_host_cpu=
+		;;
+	*-apple-*)
+	  case "$host_cpu" in
+	  arm*)
+	    _host_cpu=arm
+	    ;;
+	  *)
+	    _host_cpu=$host_cpu
+	    ;;
+	  esac
+	  ;;
 	*-*-vxworks*)
 		_host_cpu=$host_cpu
 		;;
@@ -614,6 +636,23 @@ if test "$cross_compiling" = yes; then
 	_PYTHON_HOST_PLATFORM="$MACHDEP${_host_cpu:+-$_host_cpu}"
 fi
 
+# The _PYTHON_HOST_PLATFORM environment variable is used to
+# override the platform name in distutils and sysconfig when
+# cross-compiling. On Apple, the platform name expansion logic
+# is non-trivial, including renaming MACHDEP=darwin to macosx
+# and including the deployment target (or current OS version if
+# not set). Here we always force an override based on the target
+# triple. We do this in all build configurations because historically
+# the automatic resolution has been brittle.
+case "$host" in
+aarch64-apple-darwin*)
+  _PYTHON_HOST_PLATFORM="macosx-${MACOSX_DEPLOYMENT_TARGET}-arm64"
+  ;;
+x86_64-apple-darwin*)
+  _PYTHON_HOST_PLATFORM="macosx-${MACOSX_DEPLOYMENT_TARGET}-x86_64"
+  ;;
+esac
+
 # Some systems cannot stand _XOPEN_SOURCE being defined at all; they
 # disable features if it is defined, without any means to access these
 # features as extensions. For these systems, we skip the definition of
@@ -1507,7 +1546,7 @@ if test $enable_shared = "yes"; then
 	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(LDVERSION)'
 	  RUNSHARED=SHLIB_PATH=`pwd`${SHLIB_PATH:+:${SHLIB_PATH}}
 	  ;;
-    Darwin*)
+    Darwin*|iOS*|tvOS*|watchOS*)
     	LDLIBRARY='libpython$(LDVERSION).dylib'
 	BLDLIBRARY='-L. -lpython$(LDVERSION)'
 	RUNSHARED=DYLD_LIBRARY_PATH=`pwd`${DYLD_LIBRARY_PATH:+:${DYLD_LIBRARY_PATH}}
@@ -3173,6 +3203,11 @@ then
 	Linux*|GNU*|QNX*|VxWorks*|Haiku*)
 		LDSHARED='$(CC) -shared'
 		LDCXXSHARED='$(CXX) -shared';;
+	iOS*|tvOS*|watchOS*)
+		LDSHARED='$(CC) -bundle -undefined dynamic_lookup'
+		LDCXXSHARED='$(CXX) -bundle -undefined dynamic_lookup'
+		BLDSHARED="$LDSHARED"
+		;;
 	FreeBSD*)
 		if [[ "`$CC -dM -E - </dev/null | grep __ELF__`" != "" ]]
 		then