pyinstaller patch for BigSur (there are some syntax error, so needs to be fixed before applying)

pyinstaller.patch

diff --git a/PyInstaller/depend/bindepend.py b/PyInstaller/depend/bindepend.py
index 95660b5dcef0f7167bf62007422233daefb758a7..854947b364b4242f2bea89ee6cbd9cd7c382879a 100644
--- a/PyInstaller/depend/bindepend.py
+++ b/PyInstaller/depend/bindepend.py
@@ -21,6 +21,7 @@ from glob import glob
 # Required for extracting eggs.
 import zipfile
 import collections
+from ctypes import cdll
 
 from .. import compat
 from ..compat import (is_win, is_win_10, is_unix,
@@ -692,10 +693,17 @@ def _getImports_macholib(pth):
                 if not os.path.isabs(run_path):
                     run_path = os.path.join(exec_path, run_path)
                 # Stop looking for lib when found in first location.
-                if os.path.exists(os.path.join(run_path, lib)):
-                    final_lib = os.path.abspath(os.path.join(run_path, lib))
+                
+                try:
+                    candidate = os.path.exists(os.path.join(run_path, lib))
+                    cdll.LoadLibrary(candidate)
+                except OSError:
+                    pass
+                else:
+                    final_lib = candidate
                     rslt.add(final_lib)
                     break
+
             # Log error if no existing file found.
             if not final_lib:
                 logger.error('Can not find path %s (needed by %s)', lib, pth)
@@ -707,11 +715,13 @@ def _getImports_macholib(pth):
             # It is also replaced by 'exec_path'.
             if lib.startswith('@loader_path'):
                 lib = lib.replace('@loader_path', '@executable_path')
+            
             try:
-                lib = dyld_find(lib, executable_path=exec_path)
-                rslt.add(lib)
-            except ValueError:
+                cdll.LoadLibrary(lib)
+            except OSError:
                 logger.error('Can not find path %s (needed by %s)', lib, pth)
+            else:
+                rslt.add(lib)
 
     return rslt