#/

# @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 base download URL:

DEPS_CEPHES_URL ?= http://www.netlib.org/cephes/

# Determine the basename for the download:

deps_cephes_basename := netlib_cephes

# Define the checksum(s) to verify downloaded libraries:

DEPS_CEPHES_CHECKSUM ?= $(foreach file,$(DEPS_CEPHES_LIBS),$(shell $(CAT) $(DEPS_CHECKSUMS_DIR)/$(subst .,_,$(deps_cephes_basename)_$(file).tgz)/sha256))

# Define the output directory when downloading:

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

# Define the output path(s) when downloading:

deps_cephes_download_out := $(addsuffix .tgz,$(addprefix $(DEPS_CEPHES_DOWNLOAD_OUT)/,$(DEPS_CEPHES_LIBS)))

# Generate an interleaved list of output download paths and checksums:

deps_cephes_checksum := $(join $(deps_cephes_download_out),$(addprefix |,$(DEPS_CEPHES_CHECKSUM)))

deps_cephes_checksum := $(foreach pair,$(deps_cephes_checksum),$(subst |, ,$(pair)))

# Define the output path(s) when building:

deps_cephes_build_out := $(addprefix $(DEPS_CEPHES_BUILD_OUT)/cephes/,$(DEPS_CEPHES_LIBS))

# Define the path to the directory containing tests:

DEPS_CEPHES_TEST_DIR ?= $(DEPS_DIR)/test/netlib_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 := \

bessel/airy.c \

bessel/hyp2f1.c \

bessel/hyperg.c \

bessel/i0.c \

bessel/i1.c \

bessel/iv.c \

bessel/j0.c \

bessel/j1.c \

bessel/jn.c \

bessel/jv.c \

bessel/k0.c \

bessel/k1.c \

bessel/kn.c \

bessel/psi.c \

bessel/struve.c \

bessel/yn.c \

cmath/acosh.c \

cmath/asin.c \

cmath/asinh.c \

cmath/atan.c \

cmath/atanh.c \

cmath/cbrt.c \

cmath/chbevl.c \

cmath/const.c \

cmath/cosh.c \

cmath/drand.c \

cmath/exp.c \

cmath/exp10.c \

cmath/exp2.c \

cmath/fabs.c \

cmath/floor.c \

cmath/isnan.c \

cmath/log.c \

cmath/log10.c \

cmath/log2.c \

cmath/mtherr.c \

cmath/polevl.c \

cmath/pow.c \

cmath/powi.c \

cmath/round.c \

cmath/setprec.c \

cmath/sin.c \

cmath/sincos.c \

cmath/sindg.c \

cmath/sinh.c \

cmath/sqrt.c \

cmath/tan.c \

cmath/tandg.c \

cmath/tanh.c \

cmath/unity.c \

cprob/bdtr.c \

cprob/btdtr.c \

cprob/chdtr.c \

cprob/expx2.c \

cprob/fdtr.c \

cprob/gamma.c \

cprob/gdtr.c \

cprob/igam.c \

cprob/igami.c \

cprob/incbet.c \

cprob/incbi.c \

cprob/kolmogorov.c \

cprob/nbdtr.c \

cprob/ndtr.c \

cprob/ndtri.c \

cprob/pdtr.c \

cprob/stdtr.c

# Resolve a list of source files to absolute filepaths:

DEPS_CEPHES_SRC ?= $(addprefix $(DEPS_CEPHES_BUILD_OUT)/cephes/,$(deps_cephes_src))

# TARGETS #

# Create a download directory.

#

# This target creates a download directory for netlib Cephes.

$(DEPS_CEPHES_DOWNLOAD_OUT):

$(QUIET) echo 'Creating download directory...' >&2

$(QUIET) $(MKDIR_RECURSIVE) $(DEPS_CEPHES_DOWNLOAD_OUT)

# Download library.

#

# This target downloads the netlib Cephes library for 128-bit reals.

$(DEPS_CEPHES_DOWNLOAD_OUT)/128bit.tgz: | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for Bessel and hypergeometric functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/bessel.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz $(DEPS_CEPHES_DOWNLOAD_OUT)/cprob.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for complex type as in C9X standard.

$(DEPS_CEPHES_DOWNLOAD_OUT)/c9x-complex.tgz: | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for double-precision elementary functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/cmath.tgz: | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for probability integrals and their inverses.

$(DEPS_CEPHES_DOWNLOAD_OUT)/cprob.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for elliptic integrals and elliptic filter calculator.

$(DEPS_CEPHES_DOWNLOAD_OUT)/ellf.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library which is a subset of `cmath.tgz` and used by other functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz: | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for floating point arithmetic in standard precisions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/ieee.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for IEEE 80-bit extended real elementary functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/ldouble.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for C translations of `eigens`, `lmdif`.

$(DEPS_CEPHES_DOWNLOAD_OUT)/linalg.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for Fresnel integrals, polylogarithms, Planck radiation formula, Adams-Bashforth-Moulton and Runge-Kutta, solar system integration.

$(DEPS_CEPHES_DOWNLOAD_OUT)/misc.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for Fresnel integrals, polylogarithms, Planck radiation formula, Adams-Bashforth-Moulton and Runge-Kutta, solar system integration.

$(DEPS_CEPHES_DOWNLOAD_OUT)/ode.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for arithmetic on rationals and polynomials.

$(DEPS_CEPHES_DOWNLOAD_OUT)/polyn.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for 144- or 336-bit precision floating point arithmetic and functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/qfloat.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for minimax rational approximation.

$(DEPS_CEPHES_DOWNLOAD_OUT)/remes.tgz: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Download library.

#

# This target downloads the netlib Cephes library for 32-bit floating point versions of Cephes functions.

$(DEPS_CEPHES_DOWNLOAD_OUT)/single.tgz: | $(DEPS_TMP_DIR) $(DEPS_CEPHES_DOWNLOAD_OUT)

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

$(QUIET) $(DEPS_DOWNLOAD_BIN) $(DEPS_CEPHES_URL)`basename $@` $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for 128-bit reals.

$(DEPS_CEPHES_BUILD_OUT)/cephes/128bit: $(DEPS_CEPHES_DOWNLOAD_OUT)/128bit.tgz

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for Bessel and hypergeometric functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/bessel: $(DEPS_CEPHES_DOWNLOAD_OUT)/bessel.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval $(DEPS_CEPHES_BUILD_OUT)/cephes/cprob

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

$(QUIET) $(CP) $(DEPS_CEPHES_BUILD_OUT)/cephes/cprob/mconf.h $(DEPS_CEPHES_BUILD_OUT)/cephes/bessel/mconf.h

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for complex type as in C9X standard.

$(DEPS_CEPHES_BUILD_OUT)/cephes/c9x-complex: $(DEPS_CEPHES_DOWNLOAD_OUT)/c9x-complex.tgz

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

$(QUIET) mv $@/c9x-complex/* $@/

$(QUIET) rmdir $@/c9x-complex/

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for double-precision elementary functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/cmath: $(DEPS_CEPHES_DOWNLOAD_OUT)/cmath.tgz

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for probability integrals and their inverses.

$(DEPS_CEPHES_BUILD_OUT)/cephes/cprob: $(DEPS_CEPHES_DOWNLOAD_OUT)/cprob.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for elliptic integrals and elliptic filter calculator.

$(DEPS_CEPHES_BUILD_OUT)/cephes/ellf: $(DEPS_CEPHES_DOWNLOAD_OUT)/ellf.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library which is a subset of `cmath.tgz` and used by other functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/eval: $(DEPS_CEPHES_DOWNLOAD_OUT)/eval.tgz

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for floating point arithmetic in standard precisions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/ieee: $(DEPS_CEPHES_DOWNLOAD_OUT)/ieee.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for IEEE 80-bit extended real elementary functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/ldouble: $(DEPS_CEPHES_DOWNLOAD_OUT)/ldouble.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for C translations of `eigens`, `lmdif`.

$(DEPS_CEPHES_BUILD_OUT)/cephes/linalg: $(DEPS_CEPHES_DOWNLOAD_OUT)/linalg.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for Fresnel integrals, polylogarithms, Planck radiation formula, Adams-Bashforth-Moulton and Runge-Kutta, solar system integration.

$(DEPS_CEPHES_BUILD_OUT)/cephes/misc: $(DEPS_CEPHES_DOWNLOAD_OUT)/misc.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for Fresnel integrals, polylogarithms, Planck radiation formula, Adams-Bashforth-Moulton and Runge-Kutta, solar system integration.

$(DEPS_CEPHES_BUILD_OUT)/cephes/ode: $(DEPS_CEPHES_DOWNLOAD_OUT)/ode.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for arithmetic on rationals and polynomials.

$(DEPS_CEPHES_BUILD_OUT)/cephes/polyn: $(DEPS_CEPHES_DOWNLOAD_OUT)/polyn.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for 144- or 336-bit precision floating point arithmetic and functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/qfloat: $(DEPS_CEPHES_DOWNLOAD_OUT)/qfloat.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for minimax rational approximation.

$(DEPS_CEPHES_BUILD_OUT)/cephes/remes: $(DEPS_CEPHES_DOWNLOAD_OUT)/remes.tgz $(DEPS_CEPHES_BUILD_OUT)/cephes/eval

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Extract library.

#

# This target extracts a gzipped tar archive of the netlib Cephes library for 32-bit floating point versions of Cephes functions.

$(DEPS_CEPHES_BUILD_OUT)/cephes/single: $(DEPS_CEPHES_DOWNLOAD_OUT)/single.tgz

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

$(QUIET) $(MKDIR_RECURSIVE) $@

$(QUIET) $(TAR) -zxf $< -C $@

# Create directory for tests.

#

# This target creates a directory for storing compiled tests.

$(DEPS_CEPHES_TEST_OUT):

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

# Compile install test.

#

# This target compiles a test file for testing an installation.

$(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)

# Download Cephes.

#

# This target downloads a Cephes distribution.

deps-download-cephes: $(deps_cephes_download_out)

.PHONY: deps-download-cephes

# Verify download.

#

# This targets verifies a download.

deps-verify-cephes: deps-download-cephes

$(QUIET) $(DEPS_CHECKSUM_BIN) $(deps_cephes_checksum) >&2

.PHONY: deps-verify-cephes

# Extract Cephes.

#

# This target extracts downloaded Cephes libraries.

deps-extract-cephes: $(deps_cephes_build_out)

.PHONY: deps-extract-cephes

# Test install.

#

# This target tests an installation.

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