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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/fftw/fftw-3.3-r1.ebuild,v 1.1 2011/10/09 11:56:41 xarthisius Exp $
EAPI=4
inherit autotools eutils flag-o-matic fortran-2 toolchain-funcs
DESCRIPTION="Fast C library for the Discrete Fourier Transform"
HOMEPAGE="http://www.fftw.org/"
SRC_URI="http://www.fftw.org/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="3.0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos"
IUSE="altivec doc fortran mpi openmp sse sse2 static-libs threads"
DEPEND="
fortran? ( virtual/fortran )
mpi? ( virtual/mpi )"
RDEPEND="${DEPEND}"
pkg_setup() {
use openmp && FORTRAN_NEED_OPENMP="1"
use fortran && fortran-2_pkg_setup
use openmp && FFTW_OPENMP="--enable-openmp"
if use openmp && ! tc-has-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, we will build using POSIX threads."
epause 5
FFTW_OPENMP="--disable-openmp"
fi
FFTW_DIRS="single double longdouble"
use openmp && [[ $(tc-getCC)$ == icc* ]] && append-ldflags $(no-as-needed)
}
src_prepare() {
# fix info file for category directory
sed -i \
-e 's/Texinfo documentation system/Libraries/' \
doc/fftw3.info || die "failed to fix info file"
rm m4/lt* m4/libtool.m4
AT_M4DIR=m4 eautoreconf
for x in ${FFTW_DIRS}; do
mkdir "${S}-${x}" || die
done
}
src_configure() {
# filter -Os according to docs
replace-flags -Os -O2
local myconfcommon="--enable-shared
$(use_enable static-libs static)
$(use_enable fortran)
$(use_enable mpi)
$(use_enable threads)
${FFTW_OPENMP}"
local myconfsingle="${myconfcommon} --enable-single"
local myconfdouble="${myconfcommon}"
local myconflongdouble="${myconfcommon} --enable-long-double"
if use sse2; then
myconfsingle="${myconfsingle} --enable-sse"
myconfdouble="${myconfdouble} --enable-sse2"
elif use sse; then
myconfsingle="${myconfsingle} --enable-sse"
fi
# altivec only helps singles, not doubles
if use altivec; then
myconfsingle="${myconfsingle} --enable-altivec"
fi
for x in ${FFTW_DIRS}; do
cd "${S}-${x}"
einfo "Configuring for ${x} precision"
local p=myconf${x}
ECONF_SOURCE="${S}" econf ${!p}
done
}
src_compile() {
for x in ${FFTW_DIRS}; do
cd "${S}-${x}"
einfo "Compiling for ${x} precision"
emake
done
}
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 x in ${FFTW_DIRS}; do
cd "${S}-${x}/tests"
einfo "Testing ${x} precision"
emake -j1 check
done
}
src_install () {
local f u
# all builds are installed in the same place
# libs have distinuguished names; include files, docs etc. identical.
for x in ${FFTW_DIRS}; do
cd "${S}-${x}"
emake DESTDIR="${D}" install
done
cd "${S}"
dodoc AUTHORS ChangeLog NEWS README TODO COPYRIGHT CONVENTIONS
if use doc; then
cd doc
insinto /usr/share/doc/${PF}
doins -r html fftw3.pdf
insinto /usr/share/doc/${PF}/faq
doins FAQ/fftw-faq.html/*
fi
use openmp && [[ ${FFTW_OPENMP} = "--enable-openmp" ]] && u="omp"
for f in "${ED}"/usr/lib*/pkgconfig/*.pc; do
for u in $(usev mpi) $(usev threads) ${u}; do
sed "s|-lfftw3[lf]\?|&_$u &|" "$f" > "${f%.pc}_$u.pc" || die
done
done
}
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