summaryrefslogtreecommitdiff
blob: bf5c88081a610c90e001ad22c732ee546ec7b58a (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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/blas-atlas/blas-atlas-3.9.21-r1.ebuild,v 1.1 2010/02/06 17:08:34 markusle Exp $

inherit eutils toolchain-funcs fortran multilib

DESCRIPTION="Automatically Tuned Linear Algebra Software BLAS implementation"
HOMEPAGE="http://math-atlas.sourceforge.net/"
MY_PN=${PN/blas-/}
SRC_URI="mirror://sourceforge/math-atlas/${MY_PN}${PV}.tar.bz2
	mirror://gentoo/${MY_PN}-${PV}-shared-libs.2.patch.bz2"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86"
IUSE="doc"

RDEPEND="app-admin/eselect-blas
	app-admin/eselect-cblas
	doc? ( app-doc/blas-docs )"
DEPEND="app-admin/eselect-blas
	app-admin/eselect-cblas
	>=sys-devel/libtool-1.5"

S="${WORKDIR}/ATLAS"

pkg_setup() {
	# icc won't compile (as of icc-10.0.026)
	# and will blow out $PORTAGE_TMPDIR
	if [[ $(tc-getCC) = icc* ]]; then
		eerror "icc compiler is not supported with sci-libs/blas-atlas"
		die "blas-atlas won't compile with icc"
	fi

	FORTRAN="g77 gfortran ifc"
	fortran_pkg_setup
	echo
	ewarn "Please make sure to disable CPU throttling completely"
	ewarn "during the compile of blas-atlas. Otherwise, all atlas"
	ewarn "generated timings will be completely random and the"
	ewarn "performance of the resulting libraries will be degraded"
	ewarn "considerably."
	echo
	ewarn "For users of <=gcc-4.1 only:"
	ewarn "If you experience failing SANITY tests during"
	ewarn "atlas' compile please try passing -mfpmath=387; this"
	ewarn "option might also result in much better performance"
	ewarn "than using then sse instruction set depending on your"
	ewarn "CPU."
	echo
	ewarn "If blas-atlas fails during linking with a message"
	ewarn "'relocation R_X86_64_32 .... recompile with -fPIC.'"
	ewarn "please re-emerge libtool and then try again."
	echo
	epause 5
}

src_unpack() {
	unpack ${A}

	cd "${S}"
	epatch "${DISTDIR}"/${MY_PN}-${PV}-shared-libs.2.patch.bz2
	epatch "${FILESDIR}"/${MY_PN}-asm-gentoo.patch

	BLD_DIR="${S}"/gentoo-build
	mkdir "${BLD_DIR}" || die "failed to generate build directory"
	cd "${BLD_DIR}"
	cp "${FILESDIR}"/war . && chmod a+x war || die "failed to install war"

	local archselect=
	if use amd64 || use ppc64; then
		archselect="-b 64"
	elif use alpha; then
		archselect=""
	else
		archselect="-b 32"
	fi

	# Remove -m64 on alpha, since the compiler doesn't support it
	use alpha && sed -i -e 's/-m64//g' "${S}"/CONFIG/src/probe_comp.c

	# unfortunately, atlas-3.9.0 chokes when passed
	# x86_64-pc-linux-gnu-gcc and friends instead of
	# plain gcc. Hence, we'll have to workaround this
	# until it is fixed by upstream
	local c_compiler=$(tc-getCC)
	if [[ "${c_compiler}" == *gcc* ]]; then
		c_compiler="gcc"
	fi

	../configure \
		--cc="${c_compiler}" \
		--cflags="${CFLAGS}" \
		--prefix="${D}/${DESTTREE}" \
		--libdir="${D}/${DESTTREE}"/$(get_libdir)/atlas \
		--incdir="${D}/${DESTTREE}"/include \
		-C ac "${c_compiler}" -F ac "${CFLAGS}" \
		-C if ${FORTRANC} -F if "${FFLAGS:-'-O2'}" \
		-Ss pmake "\$(MAKE) ${MAKEOPTS}" \
		-Si cputhrchk 0 ${archselect} \
		|| die "configure failed"

	# fix LDFLAGS
	sed -e "s|LDFLAGS =.*|LDFLAGS = ${LDFLAGS}|" \
		-i "${BLD_DIR}"/Make.inc
}

src_compile() {
	cd "${BLD_DIR}"

	# atlas does its own parallel builds
	# — and it fails parallel make, bug #294172
	emake -j1 || die "emake failed"

	RPATH="${DESTTREE}"/$(get_libdir)/blas
	emake -j1 \
		LIBDIR=$(get_libdir) \
		RPATH="${RPATH}"/atlas \
		shared || die "failed to build shared libraries"

	# build shared libraries of threaded libraries if applicable
	if [[ -d gentoo/libptcblas.a ]]; then
		emake -j1 \
			LIBDIR=$(get_libdir) \
			RPATH="${RPATH}"/threaded-atlas \
			ptshared || die "failed to build threaded shared libraries"
	fi
}

src_test() {
	# make check does not work because
	# we don't build lapack libs
	for i in F77 C; do
		einfo "Testing ${i} interface"
		cd "${BLD_DIR}"/interfaces/blas/${i}/testing
		make sanity_test || die "emake tests for ${i} failed"
		if [[ -d "${BLD_DIR}"/gentoo/libptf77blas.a ]]; then
			make ptsanity_test || die "emake tests threaded for ${i}failed"
		fi
	done
	echo "Timing ATLAS"
	cd "${BLD_DIR}"
	emake time || die "emake time failed"
}

src_install () {
	dodir "${RPATH}"/atlas
	cd "${BLD_DIR}"/gentoo/libs
	cp -P libatlas* "${D}/${DESTTREE}"/$(get_libdir) \
		|| die "Failed to install libatlas"

	# pkgconfig files
	local extlibs="-lm"
	local threadlibs
	[[ ${FORTRANC} == gfortran ]] && extlibs="${extlibs} -lgfortran"
	[[ ${FORTRANC} == g77 ]] && extlibs="${extlibs} -lg2c"
	cp "${FILESDIR}"/blas.pc.in blas.pc
	cp "${FILESDIR}"/cblas.pc.in cblas.pc
	sed -i \
		-e "s:@LIBDIR@:$(get_libdir)/blas/atlas:" \
		-e "s:@PV@:${PV}:" \
		-e "s:@EXTLIBS@:${extlibs}:g" \
		-e "s:@THREADLIBS@:${threadlibs}:g" \
		*blas.pc || die "sed *blas.pc failed"

	cp -P *blas* "${D}/${RPATH}"/atlas \
		|| die "Failed to install blas/cblas"

	ESELECT_PROF=atlas
	eselect blas add $(get_libdir) "${FILESDIR}"/eselect.blas.atlas ${ESELECT_PROF}
	eselect cblas add $(get_libdir) "${FILESDIR}"/eselect.cblas.atlas ${ESELECT_PROF}

	if [[ -d "${BLD_DIR}"/gentoo/threaded-libs ]];	then
		dodir "${RPATH}"/threaded-atlas
		cd "${BLD_DIR}"/gentoo/threaded-libs

		# pkgconfig files
		cp "${FILESDIR}"/blas.pc.in blas.pc
		cp "${FILESDIR}"/cblas.pc.in cblas.pc
		threadlibs="-lpthread"
		sed -i \
			-e "s:@LIBDIR@:$(get_libdir)/blas/threaded-atlas:" \
			-e "s:@PV@:${PV}:" \
			-e "s:@EXTLIBS@:${extlibs}:g" \
			-e "s:@THREADLIBS@:${threadlibs}:g" \
			*blas.pc || die "sed *blas.pc failed"

		cp -P * "${D}/${RPATH}"/threaded-atlas \
			|| die "Failed to install threaded atlas"
		ESELECT_PROF=atlas-threads

		eselect blas add $(get_libdir) "${FILESDIR}"/eselect.blas.threaded-atlas ${ESELECT_PROF}
		eselect cblas add $(get_libdir) "${FILESDIR}"/eselect.cblas.threaded-atlas ${ESELECT_PROF}
	fi

	insinto "${DESTTREE}"/include/atlas
	doins \
		"${S}"/include/cblas.h \
		"${S}"/include/atlas_misc.h \
		"${S}"/include/atlas_enum.h \
		"${S}"/include/atlas_aux.h \
		|| die "failed to install headers"

	# These headers contain the architecture-specific
	# optimizations determined by ATLAS. The atlas-lapack build
	# is much shorter if they are available, so save them:
	doins "${BLD_DIR}"/include/*.h \
		|| die "failed to install timing headers"

	# some docs
	cd "${S}"/doc
	dodoc INDEX.txt AtlasCredits.txt ChangeLog || die "dodoc failed"
	# atlas specific doc (blas generic docs installed by blas-docs)
	if use doc; then
		insinto /usr/share/doc/${PF}
		doins atlas*pdf cblasqref.pdf || die "doins docs failed"
	fi
}

pkg_postinst() {
	for p in blas cblas; do
		local current_p=$(eselect ${p} show | cut -d' ' -f2)
		# this snippet works around the eselect bug #189942 and makes
		# sure that users upgrading from a previous blas-atlas
		# version pick up the new pkg-config files
		if [[ ${current_p} == ${ESELECT_PROF} \
			  || ${current_p} == "threaded-atlas" \
			  || -z ${current_p} ]]; then
			local configfile="${ROOT}"/etc/env.d/${p}/$(get_libdir)/config
			[[ -e ${configfile} ]] && rm -f ${configfile}
			eselect ${p} set ${ESELECT_PROF}
			elog "${p} has been eselected to ${ESELECT_PROF}"
		else
			elog "Current eselected ${p} is ${current_p}"
			elog "To use the ${p} ${ESELECT_PROF} implementation, you have to issue (as root):"
			elog "\t eselect ${p} set ${ESELECT_PROF}"
		fi
	done
}