[RTC] Able to build without HAL module

fpistm · fpistm · commit 5569bb686b1b · 2019-05-12T20:37:12.000+02:00
Signed-off-by: Frederic Pillon &lt;frederic.pillon@st.com&gt;
diff --git a/cores/arduino/stm32/stm32yyxx_hal_conf.h b/cores/arduino/stm32/stm32yyxx_hal_conf.h
@@ -26,7 +26,11 @@
 #undef HAL_I2C_MODULE_ENABLED
 #endif
 
+#if !defined(HAL_RTC_MODULE_DISABLED)
 #define HAL_RTC_MODULE_ENABLED
+#else
+#undef HAL_RTC_MODULE_ENABLED
+#endif
 
 #if !defined(HAL_SPI_MODULE_DISABLED)
 #define HAL_SPI_MODULE_ENABLED
