From bffa23c4b22f0f8c90a2603076e925ed55e26e56 Mon Sep 17 00:00:00 2001
From: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
Date: Wed, 26 Dec 2018 08:24:47 +0100
Subject: [PATCH] add LV_VERSION_CHECK

---
 lv_version.h | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 lvgl.h       |  8 ++-----
 2 files changed, 68 insertions(+), 6 deletions(-)
 create mode 100644 lv_version.h

diff --git a/lv_version.h b/lv_version.h
new file mode 100644
index 000000000..602c42332
--- /dev/null
+++ b/lv_version.h
@@ -0,0 +1,66 @@
+/**
+ * @file lv_version.h
+ *
+ */
+
+#ifndef LV_VERSION_H
+#define LV_VERSION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+/*Current version of LittlevGL*/
+#define LVGL_VERSION_MAJOR   5
+#define LVGL_VERSION_MINOR   3
+#define LVGL_VERSION_PATCH   0
+#define LVGL_VERSION_INFO    "dev"
+
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+/* Gives 1 if the x.y.z version is supported in the current version
+ * Usage:
+ *
+ * - Require v6
+ * #if LV_VERSION_CHECK(6,0,0)
+ *   new_func_in_v6();
+ * #endif
+ *
+ *
+ * - Require at least v5.3
+ * #if LV_VERSION_CHECK(5,3,0)
+ *   new_feature_from_v5_3();
+ * #endif
+ *
+ *
+ * - Require v5.3.2 bugfixes
+ * #if LV_VERSION_CHECK(5,3,2)
+ *   bugfix_in_v5_3_2();
+ * #endif
+ *
+ * */
+#define LV_VERSION_CHECK(x,y,z) (x == LVGL_VERSION_MAJOR && (y < LVGL_VERSION_MINOR || (y == LVGL_VERSION_MINOR && z <= LVGL_VERSION_PATCH)))
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*LV_VERSION_H*/
diff --git a/lvgl.h b/lvgl.h
index 7e0792c48..209ce6bc2 100644
--- a/lvgl.h
+++ b/lvgl.h
@@ -14,7 +14,8 @@ extern "C" {
  *      INCLUDES
  *********************/
 
-/*Test misc. module version*/
+#include "lv_version.h"
+
 #include "lv_misc/lv_log.h"
 #include "lv_misc/lv_task.h"
 
@@ -62,11 +63,6 @@ extern "C" {
 /*********************
  *      DEFINES
  *********************/
-/*Current version of LittlevGL*/
-#define LVGL_VERSION_MAJOR   5
-#define LVGL_VERSION_MINOR   3
-#define LVGL_VERSION_PATCH   0
-#define LVGL_VERSION_INFO    "dev"
 
 /**********************
  *      TYPEDEFS