SGX_DIR := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
RUNTIME_DIR = $(SGX_DIR)/../../../../Runtime

LIBPAL = $(RUNTIME_DIR)/libpal-Linux-SGX.so
SGX_SIGNER_KEY ?= $(SGX_DIR)/signer/enclave-key.pem
SGX_SIGN = $(SGX_DIR)/signer/pal-sgx-sign -libpal $(LIBPAL) -key $(SGX_SIGNER_KEY)
SGX_GET_TOKEN = $(SGX_DIR)/signer/pal-sgx-get-token

ifeq ($(SGX_RUN),1)

expand_target = $(foreach t,$(filter-out manifest,$(1)),$(patsubst %.manifest,%,$(t)).token)

%.token: %.sig
	$(call cmd,sgx_get_token)

else

expand_target = $(1) $(foreach t,$(filter-out manifest,$(1)), \
		$(patsubst %.manifest,%,$(t)).manifest.sgx)

$(SGX_SIGNER_KEY):
	$(error "Cannot find any enclave key. Generate $(abspath $(SGX_SIGNER_KEY)) or specify 'SGX_SIGNER_KEY=' with make")

%.sig %.manifest.sgx: %.manifest % $(LIBPAL) $(SGX_SIGNER_KEY) %.manifest.sgx.d
	$(call cmd,sgx_sign_manifest)

%.sig %.manifest.sgx: manifest % $(LIBPAL) $(SGX_SIGNER_KEY) %.manifest.sgx.d
	$(call cmd,sgx_sign_manifest)

%.sig %.manifest.sgx: %.manifest $(LIBPAL) $(SGX_SIGNER_KEY) %.manifest.sgx.d
	$(call cmd,sgx_sign)

.PRECIOUS: %.manifest.sgx.d

%.manifest.sgx.d: %.manifest
	$(call cmd,sgx_manifest_dependency)

%.manifest.sgx.d: manifest
	$(call cmd,sgx_manifest_dependency)

*.token nothing:

endif