From 288a708031cbe396847c89ee4213596242a12520 Mon Sep 17 00:00:00 2001
From: Izumi Raine <63145238+IzumiRaine@users.noreply.github.com>
Date: Wed, 14 Sep 2022 17:48:47 +0200
Subject: [PATCH] gptfdisk 1.0.9: add patch to fix UUID generation

---
 pkgs/tools/system/gptfdisk/default.nix |  7 +++++++
 pkgs/tools/system/gptfdisk/uuid.patch  | 11 +++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 pkgs/tools/system/gptfdisk/uuid.patch

diff --git a/pkgs/tools/system/gptfdisk/default.nix b/pkgs/tools/system/gptfdisk/default.nix
index b470b9cea709..871d309d5304 100644
--- a/pkgs/tools/system/gptfdisk/default.nix
+++ b/pkgs/tools/system/gptfdisk/default.nix
@@ -11,6 +11,13 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-2v6tJpP6646Ll4MrI0B/btWzIZvBeE9ILdhVd04tUMI=";
   };
 
+  patches = [
+    # fix UUID generation (from upstream but not yet released):
+    # https://sourceforge.net/p/gptfdisk/code/ci/6a8416cbd12d55f882bb751993b94f72d338d96f/
+    # https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1853985.html
+    ./uuid.patch
+  ];
+
   postPatch = ''
     patchShebangs gdisk_test.sh
   '' + lib.optionalString stdenv.isDarwin ''
diff --git a/pkgs/tools/system/gptfdisk/uuid.patch b/pkgs/tools/system/gptfdisk/uuid.patch
new file mode 100644
index 000000000000..110c3d106b43
--- /dev/null
+++ b/pkgs/tools/system/gptfdisk/uuid.patch
@@ -0,0 +1,11 @@
+--- a/guid.cc
++++ b/guid.cc
+@@ -141,7 +141,7 @@ void GUIDData::Zero(void) {
+ void GUIDData::Randomize(void) {
+    int i, uuidGenerated = 0;
+
+-#ifdef _UUID_UUID_H
++#if defined (_UUID_UUID_H) || defined (_UL_LIBUUID_UUID_H)
+    uuid_generate(uuidData);
+    ReverseBytes(&uuidData[0], 4);
+    ReverseBytes(&uuidData[4], 2);