RIOT/pkg/tinydtls/Makefile.include

PKG_BUILDDIR ?= $(PKGDIRBASE)/tinydtls

INCLUDES += -I$(PKG_BUILDDIR)

ifeq ($(TOOLCHAIN), llvm)
  CFLAGS += -Wno-gnu-zero-variadic-macro-arguments -Wno-unused-function
endif

INCLUDES += -I$(RIOTBASE)/pkg/tinydtls/include

ifneq (,$(filter tinydtls,$(USEMODULE)))
  INCLUDES += -I$(PKG_BUILDDIR)
  # Mandatory for tinyDTLS
  CFLAGS += -DDTLSv12 -DWITH_SHA256

  # Dependencies partially under control of the App's requirements

  # The configuration for socket overrides Sock
  ifeq (,$(filter posix_sockets,$(USEMODULE)))
    CFLAGS += -DWITH_RIOT_GNRC
  endif

  # NOTE: PSK should be enabled by default BUT if the user define any other cipher
  #       suite(s) it should not be enabled.
  # TODO: Create the flag DTLS_CIPHERS with keywords PSK, ECC (and future)
  ifeq (,$(filter -DDTLS_PSK,$(CFLAGS)))
    ifeq (,$(filter -DDTLS_ECC,$(CFLAGS)))
      CFLAGS += -DDTLS_PSK
    endif
  endif

  # Enable debug when using tinydtls_sock_dtls
  ifneq (,$(filter -DDTLS_DEBUG,$(CFLAGS)))
    ifeq (,$(TINYDTLS_LOG))
      CFLAGS += -DTINYDTLS_DEBUG
    endif
  endif

  # Handles the verbosity of tinyDTLS. Default: Minimum or just error messages.
  ifeq (,$(filter -DTINYDTLS_DEBUG,$(CFLAGS)))
    ifeq ( , $(TINYDTLS_LOG))
      CFLAGS += -DTINYDTLS_LOG_LVL=0
    else
      CFLAGS += -DTINYDTLS_LOG_LVL=$(TINYDTLS_LOG)
    endif
  else
    CFLAGS += -DTINYDTLS_LOG_LVL=6
  endif
endif

ifneq (,$(filter tinydtls_aes,$(USEMODULE)))
  DIRS += $(PKG_BUILDDIR)/aes
endif

ifneq (,$(filter tinydtls_ecc,$(USEMODULE)))
  DIRS += $(PKG_BUILDDIR)/ecc
endif

# For now contrib only contains sock_dtls adaption
ifneq (,$(filter tinydtls_sock_dtls,$(USEMODULE)))
  DIRS += $(RIOTBASE)/pkg/tinydtls/contrib
endif