Apple silicon support (#2504)

* Apple sillicon support

* Update build_pip_pkg.sh

indent fix

* Other platforms fix.

build_deps/build_pip_pkg.sh

@@ -77,14 +77,21 @@ function main() {
 
   BUILD_CMD="setup.py bdist_wheel --platlib-patch"
   if is_macos; then
-    BUILD_CMD="${BUILD_CMD} --plat-name macosx_10_13_x86_64"
+    if [[ x"$(arch)" == x"arm64" ]]; then
+      BUILD_CMD="${BUILD_CMD} --plat-name macosx_11_0_arm64"
+    else
+      BUILD_CMD="${BUILD_CMD} --plat-name macosx_10_13_x86_64"
+    fi
+    PYTHON=python3
+  else
+    PYTHON=python
   fi
 
   if [[ -z ${NIGHTLY_FLAG} ]]; then
     # Windows has issues with locking library files for deletion so do not fail here
-    python ${BUILD_CMD} || true
+    $PYTHON ${BUILD_CMD} || true
   else
-    python ${BUILD_CMD} ${NIGHTLY_FLAG} || true
+    $PYTHON ${BUILD_CMD} ${NIGHTLY_FLAG} || true
   fi
 
   cp dist/*.whl "${DEST}"
@@ -93,4 +100,4 @@ function main() {
   echo $(date) : "=== Output wheel file is in: ${DEST}"
 }
 
-main "$@"
+main "$@"