extmod/extmod.cmake: Require components to be explicitly enabled.
Otherwise include directories are added unconditionally to the build
variables if the component (submodule) is checked out. This can lead to,
eg, the esp32 build using lib/lwip header files, instead of lwip header
files from the IDF.
Fixes issue #8727.
Signed-off-by: Damien George <damien@micropython.org>
diff --git a/ports/esp32/main/CMakeLists.txt b/ports/esp32/main/CMakeLists.txt
index ab333c3..9ac6537 100644
--- a/ports/esp32/main/CMakeLists.txt
+++ b/ports/esp32/main/CMakeLists.txt
@@ -7,6 +7,10 @@
include(${MICROPY_DIR}/py/py.cmake)
if(NOT CMAKE_BUILD_EARLY_EXPANSION)
+ # Enable extmod components that will be configured by extmod.cmake.
+ # A board may also have enabled additional components.
+ set(MICROPY_PY_BTREE ON)
+
include(${MICROPY_DIR}/py/usermod.cmake)
include(${MICROPY_DIR}/extmod/extmod.cmake)
endif()