1 files changed, 73 insertions, 0 deletions
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..ee4488ec3504
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,73 @@
+# 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  
+}