varona@rpizero:~/dsv/c++/gui-2/build $ make
Scanning dependencies of target lvgl_rpi_project
[ 50%] Building CXX object CMakeFiles/lvgl_rpi_project.dir/main.cpp.o
In file included from /home/nvarona/dsv/c++/gui-2/lvgl/lvgl.h:128,
                 from /home/nvarona/dsv/c++/gui-2/main.cpp:2:
/usr/local/include/lvgl/src/lv_api_map_v8.h:49:37: error: conflicting declaration ‘typedef int32_t lv_coord_t’
   49 | typedef int32_t                     lv_coord_t;
      |                                     ^~~~~~~~~~
In file included from /home/nvarona/dsv/c++/gui-2/main.cpp:1:
/home/nvarona/dsv/c++/gui-2/lv_conf.h:25:17: note: previous declaration as ‘typedef int16_t lv_coord_t’
   25 | typedef int16_t lv_coord_t;
      |                 ^~~~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:23:13: error: variable or field ‘input_read_cb’ declared void
   23 | static void input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) {
      |             ^~~~~~~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:23:27: error: ‘lv_indev_drv_t’ was not declared in this scope; did you mean ‘lv_indev_data_t’?
   23 | static void input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) {
      |                           ^~~~~~~~~~~~~~
      |                           lv_indev_data_t
/home/nvarona/dsv/c++/gui-2/main.cpp:23:43: error: ‘drv’ was not declared in this scope
   23 | static void input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) {
      |                                           ^~~
/home/nvarona/dsv/c++/gui-2/main.cpp:23:64: error: expected primary-expression before ‘*’ token
   23 | static void input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) {
      |                                                                ^
/home/nvarona/dsv/c++/gui-2/main.cpp:23:65: error: ‘data’ was not declared in this scope; did you mean ‘std::data’?
   23 | static void input_read_cb(lv_indev_drv_t *drv, lv_indev_data_t *data) {
      |                                                                 ^~~~
      |                                                                 std::data
In file included from /usr/include/c++/10/array:41,
                 from /usr/include/c++/10/tuple:39,
                 from /usr/include/c++/10/bits/unique_ptr.h:37,
                 from /usr/include/c++/10/memory:83,
                 from /usr/include/c++/10/thread:44,
                 from /home/nvarona/dsv/c++/gui-2/main.cpp:5:
/usr/include/c++/10/bits/range_access.h:319:5: note: ‘std::data’ declared here
  319 |     data(initializer_list<_Tp> __il) noexcept
      |     ^~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:106:13: error: variable or field ‘flush_cb’ declared void
  106 | static void flush_cb(lv_disp_drv_t *disp_drv, const lv_area_t *area,
      |             ^~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:106:22: error: ‘lv_disp_drv_t’ was not declared in this scope; did you mean ‘lv_fs_drv_t’?
  106 | static void flush_cb(lv_disp_drv_t *disp_drv, const lv_area_t *area,
      |                      ^~~~~~~~~~~~~
      |                      lv_fs_drv_t
/home/nvarona/dsv/c++/gui-2/main.cpp:106:37: error: ‘disp_drv’ was not declared in this scope
  106 | static void flush_cb(lv_disp_drv_t *disp_drv, const lv_area_t *area,
      |                                     ^~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:106:47: error: expected primary-expression before ‘const’
  106 | static void flush_cb(lv_disp_drv_t *disp_drv, const lv_area_t *area,
      |                                               ^~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:107:33: error: expected primary-expression before ‘*’ token
  107 |                      lv_color_t *color_p) {
      |                                 ^
/home/nvarona/dsv/c++/gui-2/main.cpp:107:34: error: ‘color_p’ was not declared in this scope
  107 |                      lv_color_t *color_p) {
      |                                  ^~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp: In function ‘int main()’:
/home/nvarona/dsv/c++/gui-2/main.cpp:152:10: error: ‘lv_disp_draw_buf_t’ does not name a type; did you mean ‘lv_draw_buf_t’?
  152 |   static lv_disp_draw_buf_t draw_buf;
      |          ^~~~~~~~~~~~~~~~~~
      |          lv_draw_buf_t
/home/nvarona/dsv/c++/gui-2/main.cpp:154:26: error: ‘draw_buf’ was not declared in this scope
  154 |   lv_disp_draw_buf_init(&draw_buf, buf1, NULL, 320 * 10);
      |                          ^~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:154:3: error: ‘lv_disp_draw_buf_init’ was not declared in this scope; did you mean ‘lv_draw_buf_init’?
  154 |   lv_disp_draw_buf_init(&draw_buf, buf1, NULL, 320 * 10);
      |   ^~~~~~~~~~~~~~~~~~~~~
      |   lv_draw_buf_init
/home/nvarona/dsv/c++/gui-2/main.cpp:156:10: error: ‘lv_disp_drv_t’ does not name a type; did you mean ‘lv_fs_drv_t’?
  156 |   static lv_disp_drv_t disp_drv;
      |          ^~~~~~~~~~~~~
      |          lv_fs_drv_t
/home/nvarona/dsv/c++/gui-2/main.cpp:157:21: error: ‘disp_drv’ was not declared in this scope
  157 |   lv_disp_drv_init(&disp_drv);
      |                     ^~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:157:3: error: ‘lv_disp_drv_init’ was not declared in this scope; did you mean ‘lv_fs_drv_init’?
  157 |   lv_disp_drv_init(&disp_drv);
      |   ^~~~~~~~~~~~~~~~
      |   lv_fs_drv_init
/home/nvarona/dsv/c++/gui-2/main.cpp:158:23: error: ‘flush_cb’ was not declared in this scope
  158 |   disp_drv.flush_cb = flush_cb;
      |                       ^~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:162:3: error: ‘lv_disp_drv_register’ was not declared in this scope; did you mean ‘lv_fs_drv_register’?
  162 |   lv_disp_drv_register(&disp_drv);
      |   ^~~~~~~~~~~~~~~~~~~~
      |   lv_fs_drv_register
/home/nvarona/dsv/c++/gui-2/main.cpp:164:10: error: ‘lv_indev_drv_t’ does not name a type; did you mean ‘lv_indev_data_t’?
  164 |   static lv_indev_drv_t indev_drv;
      |          ^~~~~~~~~~~~~~
      |          lv_indev_data_t
/home/nvarona/dsv/c++/gui-2/main.cpp:165:22: error: ‘indev_drv’ was not declared in this scope
  165 |   lv_indev_drv_init(&indev_drv);
      |                      ^~~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:165:3: error: ‘lv_indev_drv_init’ was not declared in this scope; did you mean ‘lv_fs_drv_init’?
  165 |   lv_indev_drv_init(&indev_drv);
      |   ^~~~~~~~~~~~~~~~~
      |   lv_fs_drv_init
/home/nvarona/dsv/c++/gui-2/main.cpp:167:23: error: ‘input_read_cb’ was not declared in this scope
  167 |   indev_drv.read_cb = input_read_cb;
      |                       ^~~~~~~~~~~~~
/home/nvarona/dsv/c++/gui-2/main.cpp:168:3: error: ‘lv_indev_drv_register’ was not declared in this scope; did you mean ‘lv_fs_drv_register’?
  168 |   lv_indev_drv_register(&indev_drv);
      |   ^~~~~~~~~~~~~~~~~~~~~
      |   lv_fs_drv_register
make[2]: *** [CMakeFiles/lvgl_rpi_project.dir/build.make:82: CMakeFiles/lvgl_rpi_project.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:95: CMakeFiles/lvgl_rpi_project.dir/all] Error 2
make: *** [Makefile:103: all] Error 2