# avr libc needs some RIOT-specific support code
USEMODULE += avr_libc_extra

# tell the build system to build the avr8 common files
USEMODULE += avr8_common

# The AVR-libc provides no thread safe malloc implementation and has no hooks
# to inject. Use malloc_thread_safe to link calls to malloc to safe wrappers
# instead.
USEMODULE += malloc_thread_safe

# the atmel port uses stdio_uart by default
ifeq (,$(filter stdio_% slipdev_stdio,$(USEMODULE)))
  USEMODULE += stdio_uart
endif

# static C++ constructors need guards for thread safe initialization
ifneq (,$(filter cpp,$(FEATURES_USED)))
  USEMODULE += cxx_ctor_guards
endif