init Files

libraries/lvgl/env_support/cmake/micropython.cmake

@@ -0,0 +1,20 @@
+include("${CMAKE_CURRENT_LIST_DIR}/version.cmake")
+
+file(GLOB_RECURSE SOURCES ${LVGL_ROOT_DIR}/src/*.c)
+file(GLOB_RECURSE EXAMPLE_SOURCES ${LVGL_ROOT_DIR}/examples/*.c)
+
+# With micropython, build lvgl as interface library, link chain is:
+# lvgl_interface [lvgl] → usermod_lvgl_bindings [lv_bindings] → usermod
+# [micropython] → firmware [micropython]
+add_library(lvgl_interface INTERFACE)
+# ${SOURCES} must NOT be given to add_library directly for some reason (won't be
+# built)
+target_sources(lvgl_interface INTERFACE ${SOURCES})
+# MicroPython builds with -Werror; we need to suppress some warnings, such as:
+#
+# /home/test/build/lv_micropython/ports/rp2/build-PICO/lv_mp.c:29316:16: error:
+# 'lv_style_transition_dsc_t_path_xcb_callback' defined but not used
+# [-Werror=unused-function] 29316 | STATIC int32_t
+# lv_style_transition_dsc_t_path_xcb_callback(const lv_anim_t * arg0) |
+# ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+target_compile_options(lvgl_interface INTERFACE -Wno-unused-function)