#/

# @license Apache-2.0

#

# Copyright (c) 2017 The Stdlib Authors.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#/

# VARIABLES #

# Define the download URL:

DEPS_CEPHES_URL ?= http://www.moshier.net/cephes-math-28.tar.gz

# Determine the basename for the download:

deps_cephes_basename := $(notdir $(DEPS_CEPHES_URL))

# Define the path to the file containing a checksum to verify a download:

DEPS_CEPHES_CHECKSUM ?= $(shell $(CAT) $(DEPS_CHECKSUMS_DIR)/$(subst -,_,$(subst .,_,$(deps_cephes_basename)))/sha256)

# Define the output path when downloading:

DEPS_CEPHES_DOWNLOAD_OUT ?= $(DEPS_TMP_DIR)/$(deps_cephes_basename)

# Define the output path when building:

deps_cephes_build_out := $(DEPS_CEPHES_BUILD_OUT)/cephes

# Define the path to the directory containing tests:

DEPS_CEPHES_TEST_DIR ?= $(DEPS_DIR)/test/cephes

# Define the output directory path for compiled tests:

DEPS_CEPHES_TEST_OUT ?= $(DEPS_CEPHES_TEST_DIR)/build

# Define the path to a test file for checking an installation:

DEPS_CEPHES_TEST_INSTALL ?= $(DEPS_CEPHES_TEST_DIR)/test_install.c

# Define the output path for a test file:

DEPS_CEPHES_TEST_INSTALL_OUT ?= $(DEPS_CEPHES_TEST_OUT)/test_install

# Define a list of source files:

deps_cephes_src := \

double/acosh.c \

double/airy.c \

double/asin.c \

double/asinh.c \

double/atan.c \

double/atanh.c \

double/bdtr.c \

double/beta.c \

double/btdtr.c \

double/cbrt.c \

double/chbevl.c \

double/chdtr.c \

double/const.c \

double/cosh.c \

double/dawsn.c \

double/drand.c \

double/ei.c \

double/ellie.c \

double/ellik.c \

double/ellpe.c \

double/ellpj.c \

double/ellpk.c \

double/exp.c \

double/exp10.c \

double/exp2.c \

double/expn.c \

double/fabs.c \

double/fac.c \

double/fdtr.c \

double/floor.c \

double/fresnl.c \

double/gamma.c \

double/gdtr.c \

double/hyp2f1.c \

double/hyperg.c \

double/i0.c \

double/i1.c \

double/igam.c \

double/igami.c \

double/incbet.c \

double/incbi.c \

double/isnan.c \

double/iv.c \

double/j0.c \

double/j1.c \

double/jn.c \

double/jv.c \

double/k0.c \

double/k1.c \

double/kn.c \

double/kolmogorov.c \

double/log.c \

double/log10.c \

double/log2.c \

double/lrand.c \

double/lsqrt.c \

double/mtherr.c \

double/nbdtr.c \

double/ndtr.c \

double/ndtri.c \

double/pdtr.c \

double/polevl.c \

double/polylog.c \

double/pow.c \

double/powi.c \

double/psi.c \

double/rgamma.c \

double/round.c \

double/setprec.c \

double/shichi.c \

double/sici.c \

double/sin.c \

double/sincos.c \

double/sindg.c \

double/sinh.c \

double/spence.c \

double/sqrt.c \

double/stdtr.c \

double/struve.c \

double/tan.c \

double/tandg.c \

double/tanh.c \

double/unity.c \

double/yn.c \

double/zeta.c \

double/zetac.c

# Resolve a list of source files to absolute filepaths:

DEPS_CEPHES_SRC ?= $(addprefix $(deps_cephes_build_out)/,$(deps_cephes_src))

# RULES #

#/

# Downloads a Cephes distribution.

#

# @private

#/

$(DEPS_CEPHES_DOWNLOAD_OUT): | $(DEPS_TMP_DIR)

$(QUIET) echo 'Downloading Cephes...' >&2

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL) $(DEPS_CEPHES_DOWNLOAD_OUT)

#/

# Extracts a Cephes distribution gzipped tar archive.

#

# @private

#/

$(deps_cephes_build_out): $(DEPS_CEPHES_DOWNLOAD_OUT)

$(QUIET) echo 'Extracting Cephes...' >&2

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $(DEPS_CEPHES_DOWNLOAD_OUT) -C $(DEPS_CEPHES_BUILD_OUT)

#/

# Creates a directory for storing compiled tests for testing an installed Cephes distribution.

#

# @private

#/

$(DEPS_CEPHES_TEST_OUT):

$(QUIET) $(MKDIR_RECURSIVE) $(DEPS_CEPHES_TEST_OUT)

#/

# Compiles a test file for testing a Cephes distribution installation.

#

# @private

#/

$(DEPS_CEPHES_TEST_INSTALL_OUT): $(deps_cephes_build_out) $(DEPS_CEPHES_TEST_OUT)

$(QUIET) $(CC) -I $(DEPS_CEPHES_BUILD_OUT) \

$(DEPS_CEPHES_TEST_INSTALL) \

$(DEPS_CEPHES_SRC) \

-o $(DEPS_CEPHES_TEST_INSTALL_OUT)

#/

# Downloads a Cephes distribution.

#

# @private

#

# @example

# make deps-download-cephes

#/

deps-download-cephes: $(DEPS_CEPHES_DOWNLOAD_OUT)

.PHONY: deps-download-cephes

#/

# Verifies a downloaded Cephes distribution.

#

# @private

#

# @example

# make deps-verify-cephes

#/

deps-verify-cephes: deps-download-cephes

$(QUIET) echo 'Verifying download...' >&2

$(QUIET) $(DEPS_CHECKSUM_BIN) $(DEPS_CEPHES_DOWNLOAD_OUT) $(DEPS_CEPHES_CHECKSUM) >&2

.PHONY: deps-verify-cephes

#/

# Extracts a downloaded Cephes distribution.

#

# @private

#

# @example

# make deps-extract-cephes

#/

deps-extract-cephes: $(deps_cephes_build_out)

.PHONY: deps-extract-cephes

#/

# Tests a Cephes installation.

#

# @private

#

# @example

# make deps-test-cephes

#/

deps-test-cephes: $(DEPS_CEPHES_TEST_INSTALL_OUT)

$(QUIET) echo 'Running tests...' >&2

$(QUIET) $(DEPS_CEPHES_TEST_INSTALL_OUT)

$(QUIET) echo '' >&2

$(QUIET) echo 'Success.' >&2

.PHONY: deps-test-cephes