From d6f96c044834d75e02fa87db302715eed3290f95 Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Tue, 2 Jan 2024 17:44:56 +0000
Subject: [PATCH] add libubootenv package

---
 pkgs/default.nix             |  2 ++
 pkgs/libubootenv/Makefile    |  6 ++++++
 pkgs/libubootenv/default.nix | 17 +++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 pkgs/libubootenv/Makefile
 create mode 100644 pkgs/libubootenv/default.nix

diff --git a/pkgs/default.nix b/pkgs/default.nix
index 2495a15..3583202 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -104,4 +104,6 @@ in {
   anoia = callPackage ./anoia {};
 
   levitate = callPackage ./levitate {};
+
+  libubootenv = callPackage ./libubootenv {};
 }
diff --git a/pkgs/libubootenv/Makefile b/pkgs/libubootenv/Makefile
new file mode 100644
index 0000000..f8e0d3a
--- /dev/null
+++ b/pkgs/libubootenv/Makefile
@@ -0,0 +1,6 @@
+CFLAGS=$(INC) -D_LINUX_TYPES_H -D_LINUX_STRING_H_
+
+fw_printenv: fw_env_main.o fw_env.o \
+        crc32.o ctype.o linux_string.o \
+        env_attr.o env_flags.o
+	$(CC) -o $@ $^
diff --git a/pkgs/libubootenv/default.nix b/pkgs/libubootenv/default.nix
new file mode 100644
index 0000000..d1bed0b
--- /dev/null
+++ b/pkgs/libubootenv/default.nix
@@ -0,0 +1,17 @@
+{ stdenv
+, cmake
+, zlib
+, libyaml
+, fetchFromGitHub
+} :
+stdenv.mkDerivation {
+  name = "libubootenv";
+  src = fetchFromGitHub {
+    owner = "sbabic";
+    repo = "libubootenv";
+    rev = "3f4d15e36ceb58085b08dd13f3f2788e9299877b"; # v0.3.5
+    hash = "sha256-i7gUb1A6FTOBCpympQpndhOG9pCDA4P0iH7ZNBqo+PA=";
+  };
+  buildInputs = [ zlib libyaml ];
+  nativeBuildInputs = [ cmake ];
+}