zephyr/Makefile: clean: Clean libmicropython.a too.
@@ -82,7 +82,7 @@ build/genhdr/qstr.i.last: | $(Z_EXPORTS)
LIBMICROPYTHON_EXTRA_CMD = -$(RM) -f outdir/$(OUTDIR_PREFIX)/zephyr.lnk
# MicroPython's global clean cleans everything, fast
-CLEAN_EXTRA = outdir prj_*_merged.conf
+CLEAN_EXTRA = outdir libmicropython.a prj_*_merged.conf
# Clean Zephyr things in Zephyr way
z_clean:
