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-rw-r--r--atmel-samd/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/atmel-samd/Makefile b/atmel-samd/Makefile
index 7111bee09..9e3a10bd8 100644
--- a/atmel-samd/Makefile
+++ b/atmel-samd/Makefile
@@ -132,6 +132,7 @@ CFLAGS = $(INC) -Wall -Werror -std=gnu11 -nostdlib $(CFLAGS_CORTEX_M0) $(CFLAGS_
ifeq ($(DEBUG), 1)
# NDEBUG disables assert() statements. This reduces code size pretty dramatically, per tannewt.
# Turn on Python modules useful for debugging (e.g. uheap, ustack).
+# -DMICROPY_DEBUG_MODULES may also be added to an -flto build, if you wish.
CFLAGS += -Os -ggdb -DNDEBUG -DENABLE_MICRO_TRACE_BUFFER -DMICROPY_DEBUG_MODULES
else
CFLAGS += -Os -DNDEBUG -flto