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# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/fftw/fftw-3.1.1.ebuild,v 1.1 2006/04/03 19:46:42 markusle Exp $
inherit flag-o-matic eutils toolchain-funcs
DESCRIPTION="C subroutine library for computing the Discrete Fourier Transform (DFT)"
HOMEPAGE="http://www.fftw.org/"
SRC_URI="http://www.fftw.org/${P}.tar.gz"
LICENSE="GPL-2"
SLOT="3.0"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc-macos ~ppc64 ~sparc ~x86"
IUSE="3dnow altivec sse sse2"
DEPEND=""
src_unpack() {
unpack "${P}.tar.gz"
cd "${S}"
cd "${WORKDIR}"
use ppc-macos && epatch "${FILESDIR}"/${PN}-ppc-macos.patch
mv ${P} ${P}-single
cp -pPR ${P}-single ${P}-double
}
src_compile() {
# filter -Os according to docs
replace-flags -Os -O2
local myconfsingle=""
local myconfdouble=""
if use sse2; then
myconfsingle="$myconfsingle --enable-sse"
myconfdouble="$myconfdouble --enable-sse2"
elif use sse; then
myconfsingle="$myconfsingle --enable-sse"
elif use 3dnow; then
myconfsingle="$myconfsingle --enable-k7"
fi
# disable building of shared libs for k7 (c.f. bug #125218)
if ! use 3dnow; then
myconfsingle="$myconfsingle --enable-shared"
myconfdouble="$myconfdouble --enable-shared"
fi
# Altivec-support in fftw is currently broken
# with gcc 3.4
if [ "`gcc-version`" != "3.4" ]; then
myconfsingle="$myconfsingle `use_enable altivec`"
fi
cd "${S}-single"
econf \
--enable-threads \
--enable-float \
${myconfsingle} || \
die "./configure in single failed"
emake || die
#the only difference here is no --enable-float
cd "${S}-double"
econf \
--enable-threads \
${myconfdouble} || \
die "./configure in double failed"
emake || die
}
src_install () {
#both builds are installed in the same place
#libs have distinuguished names; include files, docs etc. identical.
cd "${S}-single"
make DESTDIR=${D} install || die
cd "${S}-double"
make DESTDIR=${D} install || die
# Install documentation.
cd "${S}-single"
dodoc AUTHORS ChangeLog NEWS README TODO COPYRIGHT CONVENTIONS
cd doc/html
dohtml -r .
}
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