7 files changed, 14 insertions, 14 deletions
diff --git a/testhal/STM32/STM32F0xx/ADC/Makefile b/testhal/STM32/STM32F0xx/ADC/Makefile
index 493c79f2e..e763da550 100644
--- a/testhal/STM32/STM32F0xx/ADC/Makefile
+++ b/testhal/STM32/STM32F0xx/ADC/Makefile
@@ -175,10 +175,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/EXT/Makefile b/testhal/STM32/STM32F0xx/EXT/Makefile
index 493c79f2e..e763da550 100644
--- a/testhal/STM32/STM32F0xx/EXT/Makefile
+++ b/testhal/STM32/STM32F0xx/EXT/Makefile
@@ -175,10 +175,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/IRQ_STORM/Makefile b/testhal/STM32/STM32F0xx/IRQ_STORM/Makefile
index 2fcacf23a..19800f516 100644
--- a/testhal/STM32/STM32F0xx/IRQ_STORM/Makefile
+++ b/testhal/STM32/STM32F0xx/IRQ_STORM/Makefile
@@ -180,10 +180,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/PWM-ICU/Makefile b/testhal/STM32/STM32F0xx/PWM-ICU/Makefile
index 493c79f2e..e763da550 100644
--- a/testhal/STM32/STM32F0xx/PWM-ICU/Makefile
+++ b/testhal/STM32/STM32F0xx/PWM-ICU/Makefile
@@ -175,10 +175,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/SPI/Makefile b/testhal/STM32/STM32F0xx/SPI/Makefile
index 493c79f2e..e763da550 100644
--- a/testhal/STM32/STM32F0xx/SPI/Makefile
+++ b/testhal/STM32/STM32F0xx/SPI/Makefile
@@ -175,10 +175,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/UART/Makefile b/testhal/STM32/STM32F0xx/UART/Makefile
index 493c79f2e..e763da550 100644
--- a/testhal/STM32/STM32F0xx/UART/Makefile
+++ b/testhal/STM32/STM32F0xx/UART/Makefile
@@ -175,10 +175,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings
diff --git a/testhal/STM32/STM32F0xx/USB_CDC/Makefile b/testhal/STM32/STM32F0xx/USB_CDC/Makefile
index f6eda4bd0..7ff07a711 100644
--- a/testhal/STM32/STM32F0xx/USB_CDC/Makefile
+++ b/testhal/STM32/STM32F0xx/USB_CDC/Makefile
@@ -178,10 +178,10 @@ AOPT =
 TOPT = -mthumb -DTHUMB
 
 # Define C warning options here
-CWARN = -Wall -Wextra -Wstrict-prototypes
+CWARN = -Wall -Wextra -Wundef -Wstrict-prototypes
 
 # Define C++ warning options here
-CPPWARN = -Wall -Wextra
+CPPWARN = -Wall -Wextra -Wundef
 
 #
 # Compiler settings