summaryrefslogtreecommitdiff
blob: ea7a5189348f2307c6ed78f17299b490fe17bf85 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

FORTRAN_NEEDED=fortran

inherit fortran-2 libtool multibuild multilib-minimal toolchain-funcs

DESCRIPTION="Fast C library for the Discrete Fourier Transform"
HOMEPAGE="https://www.fftw.org/"

MY_P=${PN}-${PV/_p/-pl}

if [[ ${PV} == *9999 ]]; then
	inherit autotools git-r3
	EGIT_REPO_URI="https://github.com/FFTW/fftw3.git"
else
	SRC_URI="https://www.fftw.org/${PN}-${PV/_p/-pl}.tar.gz"
	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
fi

S="${WORKDIR}/${MY_P}"

LICENSE="GPL-2+"
SLOT="3.0/3"
IUSE="cpu_flags_arm_neon cpu_flags_ppc_altivec cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_fma3 cpu_flags_x86_fma4 cpu_flags_x86_sse cpu_flags_x86_sse2 doc fortran mpi openmp test threads zbus"
RESTRICT="!test? ( test )"

RDEPEND="mpi? ( >=virtual/mpi-2.0-r4[${MULTILIB_USEDEP}] )"
DEPEND="${RDEPEND}"
BDEPEND="test? ( dev-lang/perl )"

HTML_DOCS=( doc/html/. )

QA_CONFIG_IMPL_DECL_SKIP=(
	# check fails with any version of gcc. On <14:
	# <artificial>:(.text.startup+0x19): undefined reference to `_rtc'
	_rtc
)

pkg_pretend() {
	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
}

pkg_setup() {
	if [[ ${MERGE_TYPE} != binary ]] && use openmp; then
		tc-check-openmp
		FORTRAN_NEED_OPENMP=1
	fi

	fortran-2_pkg_setup
	MULTIBUILD_VARIANTS=( single double longdouble )
}

src_prepare() {
	default

	if [[ ${PV} == *9999 ]]; then
		# fix info file for category directory
		eautoreconf
	else
		elibtoolize
	fi
}

multilib_src_configure() {
	local myconf=(
		--enable-shared
		--disable-static
		$(use_enable "cpu_flags_x86_fma$(usex cpu_flags_x86_fma3 3 4)" fma)
		$(use_enable fortran)
		$(use_enable zbus mips-zbus-timer)
		$(use_enable threads)
		$(use_enable openmp)
	)

	[[ ${PV} == *9999 ]] && myconf+=( --enable-maintainer-mode )

	# --enable-quad-precision is a brittle feature that requires
	# __float128 support from the toolchain, which is lacking on
	# most niche architectures. Bug #770346
	case "${MULTIBUILD_ID}" in
		single-*)
			# altivec, sse, single-paired only work for single
			myconf+=(
				--enable-single
				$(use_enable cpu_flags_ppc_altivec altivec)
				$(use_enable cpu_flags_x86_avx avx)
				$(use_enable cpu_flags_x86_avx2 avx2)
				$(use_enable cpu_flags_x86_sse sse)
				$(use_enable cpu_flags_x86_sse2 sse2)
				$(use_enable cpu_flags_arm_neon neon)
				$(use_enable mpi)
			)
			;;

		double-*)
			myconf+=(
				$(use_enable cpu_flags_x86_avx avx)
				$(use_enable cpu_flags_x86_avx2 avx2)
				$(use_enable cpu_flags_x86_sse2 sse2)
				$(use_enable mpi)
			)
			;;

		longdouble-*)
			myconf+=(
				--enable-long-double
				$(use_enable mpi)
			)
			;;

		*)
			die "${MULTIBUILD_ID%-*} precision not implemented in this ebuild"
			;;
	esac

	ECONF_SOURCE="${S}" econf "${myconf[@]}" MPICC="$(tc-getCC)"
}

src_configure() {
	multibuild_foreach_variant multilib-minimal_src_configure
}

src_compile() {
	multibuild_foreach_variant multilib-minimal_src_compile
}

multilib_src_test() {
	emake -C tests smallcheck
}

src_test() {
	# We want this to be a reasonably quick test, but that is still hard...
	ewarn "This test series will take 30 minutes on a modern 2.5Ghz machine"
	# Do not increase the number of threads, it will not help your performance
	# local testbase="perl check.pl --nthreads=1 --estimate"
	#     ${testbase} -${p}d || die "Failure: $n"

	multibuild_foreach_variant multilib-minimal_src_test
}

src_install() {
	multibuild_foreach_variant multilib-minimal_src_install
	dodoc CONVENTIONS

	if use doc; then
		dodoc doc/*.pdf
		docinto faq
		dodoc -r doc/FAQ/fftw-faq.html/.
	else
		rm -r "${ED}"/usr/share/doc/${PF}/html || die
	fi

	augment_pc_files() {
		local x
		for x in "${ED}"/usr/$(get_libdir)/pkgconfig/*.pc; do
			local u
			for u in $(usev mpi) $(usev threads) $(usex openmp omp ""); do
				sed -e "s|-lfftw3[flq]\?|&_${u} &|" "${x}" > "${x%.pc}_${u}.pc" || die
			done
		done
	}
	multilib_foreach_abi augment_pc_files

	# fftw uses pkg-config to record its private dependencies
	find "${ED}" -name '*.la' -delete || die
}