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# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/fftw/fftw-3.1.3.ebuild,v 1.1 2008/10/20 21:45:12 bicatali Exp $
inherit flag-o-matic eutils toolchain-funcs autotools fortran
DESCRIPTION="Fast C library for the Discrete Fourier Transform"
HOMEPAGE="http://www.fftw.org/"
SRC_URI="http://www.fftw.org/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="3.0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86"
IUSE="altivec doc fortran openmp sse sse2 threads"
pkg_setup() {
if use openmp &&
[[ $(tc-getCC)$ == *gcc* ]] &&
( [[ $(gcc-major-version)$(gcc-minor-version) -lt 42 ]] ||
! built_with_use sys-devel/gcc openmp )
then
ewarn "You are using gcc and OpenMP is only available with gcc >= 4.2 "
ewarn "If you want to build fftw with OpenMP, abort now,"
ewarn "and switch CC to an OpenMP capable compiler"
ewarn "Otherwise the configure script will select POSIX threads."
epause 5
fi
FORTRAN="gfortran ifc g77"
use fortran && fortran_pkg_setup
}
src_unpack() {
unpack ${A}
cd "${S}"
epatch "${FILESDIR}"/${PN}-3.1.2-configure.ac.patch
epatch "${FILESDIR}"/${PN}-3.1.2-openmp.patch
epatch "${FILESDIR}"/${PN}-3.1.2-as-needed.patch
# fix info file
sed -e 's/Texinfo documentation system/Libraries/' \
-i doc/fftw3.info || die "failed to fix info file"
AT_M4DIR=m4 eautoreconf
cd "${WORKDIR}"
mv ${P} ${P}-single
cp -pPR ${P}-single ${P}-double
cp -pPR ${P}-single ${P}-longdouble
}
src_compile() {
# filter -Os according to docs
replace-flags -Os -O2
local myconfcommon="
--enable-shared
$(use_enable threads)
$(use_enable fortran)"
if use openmp; then
myconfcommon="${myconfcommon}
--enable-threads
--with-openmp"
elif use threads; then
myconfcommon="${myconfcommon}
--enable-threads
--without-openmp"
else
myconfcommon="${myconfcommon}
--disable-threads
--without-openmp"
fi
local myconfsingle=""
local myconfdouble=""
local myconflongdouble=""
if use sse2; then
myconfsingle="${myconfsingle} --enable-sse"
myconfdouble="${myconfdouble} --enable-sse2"
elif use sse; then
myconfsingle="${myconfsingle} --enable-sse"
fi
# altivec only helps floats, not doubles
if use altivec; then
myconfsingle="${myconfsingle} --enable-altivec"
fi
cd "${S}-single"
econf \
--enable-float \
${myconfcommon} \
${myconfsingle} || \
die "econf single failed"
emake || die "emake single failed"
# the only difference here is no --enable-float
cd "${S}-double"
econf \
${myconfcommon} \
${myconfdouble} || \
die "econf double failed"
emake || die "emake double failed"
# the only difference here is --enable-long-double
cd "${S}-longdouble"
econf \
--enable-long-double \
${myconfcommon} \
${myconflongdouble} || \
die "econf long double failed"
emake || die "emake long double failed"
}
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: $n"
for d in single double longdouble; do
cd "${S}-${d}"/tests
einfo "Testing ${PN}-${d}"
emake -j1 check || die "emake test failed"
done
}
src_install () {
# all builds are installed in the same place
# libs have distinuguished names; include files, docs etc. identical.
for i in single double longdouble; do
cd "${S}-${i}"
emake DESTDIR="${D}" install || die "emake install for ${i} failed"
done
# Install documentation.
cd "${S}-single"
dodoc AUTHORS ChangeLog NEWS README TODO COPYRIGHT CONVENTIONS || die
if use doc; then
cd doc
insinto /usr/share/doc/${PF}
doins -r html fftw3.pdf || die "doc install failed"
insinto /usr/share/doc/${PF}/faq
doins FAQ/fftw-faq.html/*
fi
}
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