move Makefile to macos folder and update instructions

README.md

@@ -390,7 +390,7 @@ Project structure:
 e.g.
 
 ```
-make sync-libs-macos-and-update-pods
+cd macos && make
 ```
 
 - Android keeps a separate copy of ALL headers (because it's currently running a different version of Filament, earlier versions have some texture filtering issues) 

example/macos/Podfile.lock

@@ -20,7 +20,7 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin
 
 SPEC CHECKSUMS:
-  flutter_filament: e47abb28417d10183c856a132777e3ca08d1551d
+  flutter_filament: ddf9db01d70cce6c8f3a34f414562ebdb43c7f36
   FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
   path_provider_foundation: 29f094ae23ebbca9d3d0cec13889cd9060c0e943
 

macos/Makefile

@@ -1,17 +1,17 @@
 mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
 current_dir := $(dir $(mkfile_path))
-parent_dir := $(abspath $(dir $(lastword $(MAKEFILE_LIST)))/..)
+parent_dir := $(abspath $(dir $(lastword $(MAKEFILE_LIST)))/../..)
 
 filament_build_out := $(parent_dir)/filament/out/cmake-release
 
 # building on MacOS, we currently just delete the macos/include 
 # and macos/src directories and copy from iOS
 
-sync-libs-macos:
-	@rm -r ${current_dir}macos/include || echo "macos/include does not exist"
-	cp -R ${current_dir}ios/include ${current_dir}macos
-	@rm -r ${current_dir}macos/src || echo "macos/src does not exist"
-	cp -R ${current_dir}ios/src ${current_dir}macos
+macos:
+	rm -rf ${current_dir}include
+	cp -R ${current_dir}../ios/include ${current_dir}
+	rm -rf ${current_dir}macos/src 
+	cp -R ${current_dir}../ios/src ${current_dir}
 
 # We use a single material (no lighting and no transparency) for background images
 #