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# Maintainer: Eric Berquist <eric DOT berquist AT gmail DOT com>
_basename=fftw
pkgname=fftw2
pkgver=2.1.5
pkgrel=1
pkgdesc="A library for computing the discrete Fourier transform (DFT), major version 2, with OpenMPI"
arch=("i686" "x86_64")
license=("GPL2")
url="http://www.fftw.org/"
provides=("${pkgname}")
conflicts=("${pkgname}")
depends=("glibc")
makedepends=("gcc-fortran" "openmpi")
options=("libtool" "staticlibs")
source=("http://www.fftw.org/${_basename}-${pkgver}.tar.gz")
sha1sums=('12020b58edc1b0490a83db4aa912fac5dfdfb26b')
install=fftw2.install
# 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}
# Don"t want to switch all the variable names in the PKGBUILD.
mv ${_basename}-${pkgver} ${pkgname}-${pkgver}
cp -a ${pkgname}-${pkgver} ${pkgname}-${pkgver}-double
mv ${pkgname}-${pkgver} ${pkgname}-${pkgver}-single
# use upstream default CFLAGS while keeping our -march/-mtune
CFLAGS+=" -fomit-frame-pointer -malign-double -fstrict-aliasing -ffast-math"
CONFIGURE="./configure \
F77=gfortran \
--with-gcc \
--prefix=/usr \
--infodir=/usr/share/info \
--enable-type-prefix \
--enable-shared \
--enable-threads \
--enable-openmp \
--enable-mpi"
# double precision
cd ${srcdir}/${pkgname}-${pkgver}-double
${CONFIGURE}
make
# single precision
cd ${srcdir}/${pkgname}-${pkgver}-single
${CONFIGURE} --enable-float
make
}
check() {
cd ${srcdir}/${pkgname}-${pkgver}-double
make check
cd ${srcdir}/${pkgname}-${pkgver}-single
make check
}
package() {
cd ${srcdir}/${pkgname}-${pkgver}-double
make DESTDIR=${pkgdir} install
cd ${srcdir}/${pkgname}-${pkgver}-single
make DESTDIR=${pkgdir} install
}
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