file: add patches

Fixes https://github.com/NixOS/nixpkgs/pull/514964#issuecomment-4367185856

pkgs/tools/misc/file/0002-PR-725-inliniac-Revert-previous-and-always-set-offse.patch

@@ -0,0 +1,26 @@
+From c54605718190ad8fe9c25cb475f1f32ca7cd54f7 Mon Sep 17 00:00:00 2001
+From: Christos Zoulas <christos@zoulas.com>
+Date: Sun, 12 Apr 2026 22:15:14 +0000
+Subject: [PATCH] PR/725: inliniac: Revert previous and always set offset.
+
+---
+ src/softmagic.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/src/softmagic.c b/src/softmagic.c
+index 9aaf8b3e..7cf7c798 100644
+--- a/src/softmagic.c
++++ b/src/softmagic.c
+@@ -1577,8 +1577,7 @@ normal:
+ 			ms->offset = offset;
+ 			ms->eoffset = 0;
+ 		} else {
+-			if (b->fd != -1)
+-				ms->offset = ms->eoffset + offset;
++			ms->offset = ms->eoffset + offset;
+ 		}
+ 	}
+ 	if ((ms->flags & MAGIC_DEBUG) != 0) {
+-- 
+2.51.2
+

pkgs/tools/misc/file/default.nix

@@ -39,6 +39,8 @@ stdenv.mkDerivation (finalAttrs: {
     # Vendored patch because using fetchpatch is impossible for a package in
     # this part of the bootstrap chain.
     ./0001-PR-745-streamout-Don-t-flush-when-trying-to-set-nega.patch
+    # Fixes breakage of python3Packages.python-magic and xdg-utils
+    ./0002-PR-725-inliniac-Revert-previous-and-always-set-offse.patch
   ];
 
   strictDeps = true;