Description: use collections.abc.Callable instead of collections.Callable
 This fixes failure to build from source with Python 3.10.  The issue is
 already fixed upstream in ITKv5, the patch is for the unmaintained ITKv4.
Author: Étienne Mollier <emollier@debian.org>
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1008803
Forwarded: not-needed
Last-Update: 2022-04-02
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- Modules/ThirdParty/pygccxml/src/pygccxml/declarations/scopedef.py
+++ Modules/ThirdParty/pygccxml/src/pygccxml/declarations/scopedef.py
@@ -7,7 +7,7 @@
 
 import time
 import warnings
-import collections
+import collections.abc
 from . import algorithm
 from . import templates
 from . import declaration
@@ -332,7 +332,7 @@
 
     @staticmethod
     def _build_operator_function(name, function):
-        if isinstance(name, collections.Callable):
+        if isinstance(name, collections.abc.Callable):
             return name
         else:
             return function
@@ -345,7 +345,7 @@
                 return 'operator ' + sym
             else:
                 return 'operator' + sym
-        if isinstance(name, collections.Callable) and None is function:
+        if isinstance(name, collections.abc.Callable) and None is function:
             name = None
         if name:
             if 'operator' not in name:
@@ -368,7 +368,7 @@
     @staticmethod
     def __normalize_args(**keywds):
         """implementation details"""
-        if isinstance(keywds['name'], collections.Callable) and \
+        if isinstance(keywds['name'], collections.abc.Callable) and \
                 None is keywds['function']:
             keywds['function'] = keywds['name']
             keywds['name'] = None