From 4dfec31e84ff96dce047bfda3532012c40c91683 Mon Sep 17 00:00:00 2001
From: Alix ANNERAUD <alix@anneraud.fr>
Date: Sun, 30 Jun 2024 20:46:56 -0400
Subject: [PATCH] Add custom allocator feature

---
 lvgl/Cargo.toml | 3 +++
 lvgl/src/lib.rs | 1 +
 2 files changed, 4 insertions(+)

diff --git a/lvgl/Cargo.toml b/lvgl/Cargo.toml
index 15069d1c..7964310d 100644
--- a/lvgl/Cargo.toml
+++ b/lvgl/Cargo.toml
@@ -73,6 +73,9 @@ nightly = []
 # function before constructing or using anything LVGL-related.
 unsafe_no_autoinit = []
 
+# This feature is required to use the custom allocator in lvgl (`LV_MEM_CUSTOM=1` in `lv_conf.h`).
+custom_allocator = []
+
 [build-dependencies]
 quote = "1.0.23"
 proc-macro2 = "1.0.51"
diff --git a/lvgl/src/lib.rs b/lvgl/src/lib.rs
index 1417abc9..9766d198 100644
--- a/lvgl/src/lib.rs
+++ b/lvgl/src/lib.rs
@@ -97,6 +97,7 @@ pub fn init() {
 ///
 /// After calling, ensure existing LVGL-related values are not accessed even if
 /// LVGL is reinitialized.
+#[cfg(not(feature = "custom_allocator"))]
 pub unsafe fn deinit() {
     unsafe {
         if IS_INIT {