summaryrefslogtreecommitdiff
blob: 9174c474ef422c23108c5a040725f356b0889bbe (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
# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=5

FORTRAN_NEEDED=fortran

inherit autotools-multilib eutils flag-o-matic fortran-2 multibuild toolchain-funcs versionator

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

if [[ ${PV} = *9999 ]]; then
	inherit git-2
	EGIT_REPO_URI="https://github.com/FFTW/fftw3.git"
	KEYWORDS="alpha amd64 arm hppa ia64 ppc ppc64 sparc x86"
	AUTOTOOLS_AUTORECONF=1
else
	SRC_URI="http://www.fftw.org/${P}.tar.gz"
	KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ppc64 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos"
fi

LICENSE="GPL-2+"
SLOT="3.0/3"
IUSE="altivec cpu_flags_x86_avx doc cpu_flags_x86_fma3 cpu_flags_x86_fma4 fortran mpi neon openmp quad cpu_flags_x86_sse cpu_flags_x86_sse2 static-libs test threads zbus"

RDEPEND="
	mpi? ( virtual/mpi )
	abi_x86_32? ( !<=app-emulation/emul-linux-x86-soundlibs-20130224-r2
					!app-emulation/emul-linux-x86-soundlibs[-abi_x86_32(-)] )"
DEPEND="${RDEPEND}
	test? ( dev-lang/perl )"

pkg_setup() {
	if [[ ${MERGE_TYPE} != binary ]] && use openmp; then
		if [[ $(tc-getCC) == *gcc ]] && ! tc-has-openmp; then
			ewarn "OpenMP is not available in your current selected gcc"
			die "need openmp capable gcc"
		fi
		FORTRAN_NEED_OPENMP=1
	fi

	fortran-2_pkg_setup

	MULTIBUILD_VARIANTS=( single double longdouble )
	if use quad; then
		if [[ $(tc-getCC) == *gcc ]] && ! version_is_at_least 4.6 $(gcc-version); then
			ewarn "quad precision only available for gcc >= 4.6"
			die "need quad precision capable gcc"
		fi
		MULTIBUILD_VARIANTS+=( quad )
	fi
}

src_prepare() {
	# fix info file for category directory
	[[ ${PV} = *9999 ]] || sed -i \
		-e 's/Texinfo documentation system/Libraries/' \
		doc/fftw3."info" || die "failed to fix info file"

	autotools-utils_src_prepare
}

src_configure() {
	local x

	# filter -Os according to docs
	replace-flags -Os -O2

	my_configure() {
		#a bit hacky improve after #483758 is solved
		local x=${BUILD_DIR%-*}
		x=${x##*-}
		# there is no abi_x86_32 port of virtual/mpi right now
		local enable_mpi=$(use_enable mpi)
		multilib_is_native_abi || enable_mpi="--disable-mpi"

		#jlec reported USE=quad on abi_x86_32 has too less registers
		#stub Makefiles
		if [[ ${ABI} == x86 && ${x} == quad ]]; then
			mkdir -p "${BUILD_DIR}/tests" || die
			echo "all: ;" > "${BUILD_DIR}/Makefile" || die
			echo "install: ;" >> "${BUILD_DIR}/Makefile" || die
			echo "smallcheck: ;" > "${BUILD_DIR}/tests/Makefile" || die
			return 0
		fi

		local myeconfargs=(
			$(use_enable "cpu_flags_x86_fma$(usex cpu_flags_x86_fma3 3 4)" fma)
			$(use_enable fortran)
			$(use_enable zbus mips-zbus-timer)
			$(use_enable threads)
			$(use_enable openmp)
		)
		if [[ $x == single ]]; then
			#altivec, sse, single-paired only work for single
			myeconfargs+=(
				--enable-single
				$(use_enable altivec)
				$(use_enable cpu_flags_x86_avx avx)
				$(use_enable cpu_flags_x86_sse sse)
				${enable_mpi}
				$(use_enable neon)
			)
		elif [[ $x == double ]]; then
			myeconfargs+=(
				$(use_enable cpu_flags_x86_avx avx)
				$(use_enable cpu_flags_x86_sse2 sse2)
				${enable_mpi}
			)
		elif [[ $x == longdouble ]]; then
			myeconfargs+=(
				--enable-long-double
				${enable_mpi}
				)
		elif [[ $x == quad ]]; then
			#quad does not support mpi
			myeconfargs+=( --enable-quad-precision )
		else
			die "${x} precision not implemented in this ebuild"
		fi

		autotools-utils_src_configure
	}

	multibuild_foreach_variant multilib_parallel_foreach_abi my_configure
}

src_compile() {
	multibuild_foreach_variant autotools-multilib_src_compile
}

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 autotools-multilib_src_compile -C tests smallcheck
}

src_install () {
	local u x
	DOCS=( AUTHORS ChangeLog NEWS README TODO COPYRIGHT CONVENTIONS )
	HTML_DOCS=( doc/html/ )

	multibuild_foreach_variant multilib_foreach_abi autotools-utils_src_install

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

	for x in "${ED}"/usr/lib*/pkgconfig/*.pc; do
		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
}