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# $Id: PKGBUILD 136896 2011-09-02 17:27:59Z ronald $
# Maintainer: Ronald van Haren <ronald.archlinux.org>
# Contributor: damir <damir@archlinux.org>
pkgname=fftw
pkgver=3.3
pkgrel=1
pkgdesc="A library for computing the discrete Fourier transform (DFT)"
arch=('i686' 'x86_64' 'mips64el')
license=('GPL2')
url="http://www.fftw.org/"
depends=('glibc' 'bash')
makedepends=('gcc-fortran')
options=(!libtool)
source=(http://www.fftw.org/${pkgname}-${pkgver}.tar.gz)
install=fftw.install
sha1sums=('e44493ba4babeacba184568e727876d9aed44205')
# notes:
# http://www.fftw.org/fftw2_doc/fftw_6.html#SEC69
# http://www.fftw.org/faq/section2.html#singleprec
# http://www.fftw.org/fftw3_doc/Precision.html#Precision
build() {
cd ${srcdir}/${pkgname}-${pkgver}
if [ "$CARCH" = "mips64el" ] ; then
sse2=""
sse=""
aligndouble=""
else
sse2="--enable-sse2"
sse="--enable-sse"
aligndouble="-malign-double"
fi
# use upstream default CFLAGS while keeping our -march/-mtune
CFLAGS+=" -O3 -fomit-frame-pointer $aligndouble -fstrict-aliasing -ffast-math"
CONFIGURE="./configure F77=gfortran --prefix=/usr \
--enable-shared --enable-threads"
msg "Build & install double precision"
$CONFIGURE $sse2
make
make DESTDIR=${pkgdir} install
make clean
msg "build & install long double precission"
$CONFIGURE --enable-long-double
make
make DESTDIR=${pkgdir} install
make clean
msg "build & install single precision"
$CONFIGURE --enable-float $sse
make
make DESTDIR=${pkgdir} install
}
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