build: detect endianess of a system dynamically

buffyboard/lv_conf.h

@@ -313,9 +313,6 @@ e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
  *  COMPILER SETTINGS
  *====================*/
 
-/*For big endian systems set to 1*/
-#define LV_BIG_ENDIAN_SYSTEM    0
-
 /*Define a custom attribute to `lv_tick_inc` function*/
 #define LV_ATTRIBUTE_TICK_INC
 

meson.build

@@ -5,6 +5,7 @@ project('buffybox', 'c',
 )
 
 add_project_arguments('-DPROJECT_VERSION="@0@"'.format(meson.project_version()), language: 'c')
+add_project_arguments('-DLV_BIG_ENDIAN_SYSTEM=' + (host_machine.endian() == 'big'? '1' : '0'), language: 'c')
 
 depinih      = dependency('inih')
 deplibinput  = dependency('libinput')

unl0kr/lv_conf.h

@@ -207,9 +207,6 @@ e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
  *  COMPILER SETTINGS
  *====================*/
 
-/*For big endian systems set to 1*/
-#define LV_BIG_ENDIAN_SYSTEM    0
-
 /*Define a custom attribute to `lv_tick_inc` function*/
 #define LV_ATTRIBUTE_TICK_INC