scandir: fix build on aarch64-darwin

pkgs/development/misc/resholve/resholve.nix

@@ -19,24 +19,16 @@ python27Packages.buildPythonApplication {
 
   propagatedBuildInputs = [
     oildev
-    /*
-    Disable configargparse's tests on aarch64-darwin.
-    Several of py27 scandir's tests fail on aarch64-darwin. Chain:
-    configargparse -> pytest-check-hook -> pytest -> pathlib2 -> scandir
-    TODO: drop if https://github.com/NixOS/nixpkgs/issues/156807 resolves?
-    */
-    (python27Packages.configargparse.overridePythonAttrs (old: {
-      doCheck = stdenv.hostPlatform.system != "aarch64-darwin";
-    }))
+    python27Packages.configargparse
   ];
 
-  patchPhase = ''
+  postPatch = ''
     for file in setup.cfg _resholve/version.py; do
       substituteInPlace $file --subst-var-by version ${version}
     done
   '';
 
-   postInstall = ''
+  postInstall = ''
     installManPage resholve.1
   '';
 

pkgs/development/python2-modules/scandir/add-aarch64-darwin-dirent.patch

@@ -0,0 +1,28 @@
+diff --git a/scandir.py b/scandir.py
+index 3f602fb..40af3e5 100644
+--- a/scandir.py
++++ b/scandir.py
+@@ -23,6 +23,7 @@ from os import listdir, lstat, stat, strerror
+ from os.path import join, islink
+ from stat import S_IFDIR, S_IFLNK, S_IFREG
+ import collections
++import platform
+ import sys
+ 
+ try:
+@@ -432,6 +433,15 @@ elif sys.platform.startswith(('linux', 'darwin', 'sunos5')) or 'bsd' in sys.plat
+                     ('__d_padding', ctypes.c_uint8 * 4),
+                     ('d_name', ctypes.c_char * 256),
+                 )
++            elif 'darwin' in sys.platform and 'arm64' in platform.machine():
++                _fields_ = (
++                    ('d_ino', ctypes.c_uint64),
++                    ('d_off', ctypes.c_uint64),
++                    ('d_reclen', ctypes.c_uint16),
++                    ('d_namlen', ctypes.c_uint16),
++                    ('d_type', ctypes.c_uint8),
++                    ('d_name', ctypes.c_char * 1024),
++                )
+             else:
+                 _fields_ = (
+                     ('d_ino', ctypes.c_uint32),  # must be uint32, not ulong

pkgs/development/python2-modules/scandir/default.nix

@@ -6,9 +6,13 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 ="1bkqwmf056pkchf05ywbnf659wqlp6lljcdb0y88wr9f0vv32ijd";
+    sha256 = "1bkqwmf056pkchf05ywbnf659wqlp6lljcdb0y88wr9f0vv32ijd";
   };
 
+  patches = [
+    ./add-aarch64-darwin-dirent.patch
+  ];
+
   checkPhase = "${python.interpreter} test/run_tests.py";
 
   meta = with lib; {