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-rw-r--r--testhal/STM32/STM32F0xx/onewire/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/testhal/STM32/STM32F0xx/onewire/Makefile b/testhal/STM32/STM32F0xx/onewire/Makefile
index 72acaf4..1d47242 100644
--- a/testhal/STM32/STM32F0xx/onewire/Makefile
+++ b/testhal/STM32/STM32F0xx/onewire/Makefile
@@ -170,7 +170,7 @@ AOPT =
TOPT = -mthumb -DTHUMB
# Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wstrict-prototypes -Wundef
# Define C++ warning options here
CPPWARN = -Wall -Wextra