INCLUDES += -I$(PKGDIRBASE)/c25519/src

ifneq (,$(filter psa_c25519_%, $(USEMODULE)))
  PSEUDOMODULES += psa_c25519_edsign
  DIRS += $(RIOTPKG)/c25519/psa_c25519
  INCLUDES += -I$(RIOTBASE)/sys/psa_crypto/include
endif