84 lines
2.8 KiB
Ruby
84 lines
2.8 KiB
Ruby
class Fftw < Formula
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desc "C routines to compute the Discrete Fourier Transform"
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homepage "http://www.fftw.org"
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url "http://www.fftw.org/fftw-3.3.4.tar.gz"
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sha256 "8f0cde90929bc05587c3368d2f15cd0530a60b8a9912a8e2979a72dbe5af0982"
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revision 1
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bottle do
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cellar :any
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sha1 "b5c2d04489567aff02e2e002d906ce7349057f6e" => :yosemite
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sha1 "af376c8efd9de7501d56f763a1ead65a5d32e533" => :mavericks
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sha1 "1585929f22c6851d87cf9d451cd26ff403991a8c" => :mountain_lion
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end
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option "with-fortran", "Enable Fortran bindings"
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option :universal
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option "with-mpi", "Enable MPI parallel transforms"
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option "with-openmp", "Enable OpenMP parallel transforms"
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depends_on :fortran => :optional
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depends_on :mpi => [:cc, :optional]
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needs :openmp if build.with? "openmp"
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def install
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args = ["--enable-shared",
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"--disable-debug",
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"--prefix=#{prefix}",
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"--enable-threads",
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"--disable-dependency-tracking"]
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simd_args = ["--enable-sse2"]
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simd_args << "--enable-avx" if ENV.compiler == :clang && Hardware::CPU.avx? && !build.bottle?
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args << "--disable-fortran" if build.without? "fortran"
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args << "--enable-mpi" if build.with? "mpi"
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args << "--enable-openmp" if build.with? "openmp"
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ENV.universal_binary if build.universal?
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# single precision
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# enable-sse2 and enable-avx works for both single and double precision
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system "./configure", "--enable-single", *(args + simd_args)
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system "make", "install"
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# clean up so we can compile the double precision variant
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system "make", "clean"
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# double precision
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# enable-sse2 and enable-avx works for both single and double precision
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system "./configure", *(args + simd_args)
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system "make", "install"
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# clean up so we can compile the long-double precision variant
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system "make", "clean"
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# long-double precision
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# no SIMD optimization available
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system "./configure", "--enable-long-double", *args
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system "make", "install"
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end
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test do
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# Adapted from the sample usage provided in the documentation:
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# http://www.fftw.org/fftw3_doc/Complex-One_002dDimensional-DFTs.html
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(testpath/"fftw.c").write <<-TEST_SCRIPT.undent
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#include <fftw3.h>
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int main(int argc, char* *argv)
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{
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fftw_complex *in, *out;
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fftw_plan p;
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long N = 1;
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in = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N);
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out = (fftw_complex*) fftw_malloc(sizeof(fftw_complex) * N);
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p = fftw_plan_dft_1d(N, in, out, FFTW_FORWARD, FFTW_ESTIMATE);
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fftw_execute(p); /* repeat as needed */
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fftw_destroy_plan(p);
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fftw_free(in); fftw_free(out);
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return 0;
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}
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TEST_SCRIPT
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system ENV.cc, "-o", "fftw", "fftw.c", "-lfftw3", *ENV.cflags.to_s.split
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system "./fftw"
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end
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end
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