lib32-fftw/PKGBUILD

   1 # Maintainer: josephgbr <rafael.f.f1@gmail.com>
   2
   3 _pkgbase=fftw
   4 pkgname=lib32-${_pkgbase}
   5 pkgver=3.3
   6 pkgrel=1
   7 pkgdesc="A library for computing the discrete Fourier transform (DFT) (32 bit)"
   8 arch=('x86_64')
   9 license=('GPL2')
  10 url="http://www.fftw.org/"
  11 depends=('lib32-glibc' "${_pkgbase}")
  12 makedepends=('gcc-fortran-multilib')
  13 options=(!libtool)
  14 source=(http://www.fftw.org/${_pkgbase}-${pkgver}.tar.gz)
  15 sha1sums=('e44493ba4babeacba184568e727876d9aed44205')
  16
  17 # notes:
  18 # http://www.fftw.org/fftw2_doc/fftw_6.html#SEC69
  19 # http://www.fftw.org/faq/section2.html#singleprec
  20 # http://www.fftw.org/fftw3_doc/Precision.html#Precision
  21
  22
  23 build() {
  24   export CC='gcc -m32'
  25   export CXX='g++ -m32'
  26   export PKG_CONFIG_PATH='/usr/lib32/pkgconfig'
  27
  28   cd "${srcdir}/${_pkgbase}-${pkgver}"
  29
  30   # use upstream default CFLAGS while keeping our -march/-mtune
  31   CFLAGS+=" -O3 -fomit-frame-pointer -malign-double -fstrict-aliasing -ffast-math"
  32
  33   CONFIGURE="./configure F77=gfortran --prefix=/usr \
  34                  --enable-shared --enable-threads --libdir=/usr/lib32"
  35
  36   # build & install double precision
  37   $CONFIGURE --enable-sse2
  38   make
  39   make DESTDIR="${pkgdir}" install
  40   make clean
  41
  42 # Disabled single and long double precision - this is a difference from the
  43 # original 'fftw'. This can be activated anytime by uncommenting the list below,
  44 # but be warned that compilation time will drastically increase. -- josephgbr
  45
  46   ## build & install long double precission
  47   #$CONFIGURE --enable-long-double
  48   #make
  49   #make DESTDIR="${pkgdir}" install
  50   #make clean
  51
  52   ## build & install single precision
  53   #$CONFIGURE --enable-float --enable-sse
  54   #make
  55   #make DESTDIR="${pkgdir}" install
  56
  57   rm -rf "${pkgdir}/usr"/{bin,include,share}
  58 }