Tools: Fix recurring multiple times over the same library

CHANGES

@@ -9,6 +9,7 @@ Bugfixes:
  - GBA Savedata: Fix savedata unmasking (fixes mgba.io/i/441)
  - Util: Fix overflow when loading invalid UPS patches
  - GB: Fix crash when patching ROMs
+ - Tools: Fix recurring multiple times over the same library
 Misc:
  - Qt: Improved HiDPI support
  - Feature: Support ImageMagick 7

tools/deploy-mac.py

@@ -96,6 +96,7 @@ def updateMachO(bin, execPath, root):
 		if os.access(newPath, os.F_OK):
 			if verbose:
 				print('Skipping copying {}, already done.'.format(oldPath))
+			newPath = None
 		elif os.path.abspath(oldPath) != os.path.abspath(newPath):
 			if verbose:
 				print('Copying {} to {}...'.format(oldPath, newPath))
@@ -111,7 +112,8 @@ def updateMachO(bin, execPath, root):
 	args = [installNameTool]
 	for path, oldExecPath, newExecPath in toUpdate:
 		if path != bin:
-			updateMachO(path, execPath, root)
+			if path:
+				updateMachO(path, execPath, root)
 			if verbose:
 				print('Updating Mach-O load from {} to {}...'.format(oldExecPath, newExecPath))
 			args.extend(['-change', oldExecPath, newExecPath])