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Add FFTW3
author Chris Cannam <cannam@all-day-breakfast.com>
date Wed, 20 Mar 2013 15:35:50 +0000
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3 <title>Installation on non-Unix systems - FFTW 3.3.3</title>
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12 <!--
13 This manual is for FFTW
14 (version 3.3.3, 25 November 2012).
15
16 Copyright (C) 2003 Matteo Frigo.
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18 Copyright (C) 2003 Massachusetts Institute of Technology.
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57
58 <h3 class="section">10.2 Installation on non-Unix systems</h3>
59
60 <p>It should be relatively straightforward to compile FFTW even on non-Unix
61 systems lacking the niceties of a <code>configure</code> script. Basically,
62 you need to edit the <code>config.h</code> header (copy it from
63 <code>config.h.in</code>) to <code>#define</code> the various options and compiler
64 characteristics, and then compile all the &lsquo;<samp><span class="samp">.c</span></samp>&rsquo; files in the
65 relevant directories.
66
67 <p>The <code>config.h</code> header contains about 100 options to set, each one
68 initially an <code>#undef</code>, each documented with a comment, and most of
69 them fairly obvious. For most of the options, you should simply
70 <code>#define</code> them to <code>1</code> if they are applicable, although a few
71 options require a particular value (e.g. <code>SIZEOF_LONG_LONG</code> should
72 be defined to the size of the <code>long long</code> type, in bytes, or zero
73 if it is not supported). We will likely post some sample
74 <code>config.h</code> files for various operating systems and compilers for
75 you to use (at least as a starting point). Please let us know if you
76 have to hand-create a configuration file (and/or a pre-compiled binary)
77 that you want to share.
78
79 <p>To create the FFTW library, you will then need to compile all of the
80 &lsquo;<samp><span class="samp">.c</span></samp>&rsquo; files in the <code>kernel</code>, <code>dft</code>, <code>dft/scalar</code>,
81 <code>dft/scalar/codelets</code>, <code>rdft</code>, <code>rdft/scalar</code>,
82 <code>rdft/scalar/r2cf</code>, <code>rdft/scalar/r2cb</code>,
83 <code>rdft/scalar/r2r</code>, <code>reodft</code>, and <code>api</code> directories.
84 If you are compiling with SIMD support (e.g. you defined
85 <code>HAVE_SSE2</code> in <code>config.h</code>), then you also need to compile
86 the <code>.c</code> files in the <code>simd-support</code>,
87 <code>{dft,rdft}/simd</code>, <code>{dft,rdft}/simd/*</code> directories.
88
89 <p>Once these files are all compiled, link them into a library, or a shared
90 library, or directly into your program.
91
92 <p>To compile the FFTW test program, additionally compile the code in the
93 <code>libbench2/</code> directory, and link it into a library. Then compile
94 the code in the <code>tests/</code> directory and link it to the
95 <code>libbench2</code> and FFTW libraries. To compile the <code>fftw-wisdom</code>
96 (command-line) tool (see <a href="Wisdom-Utilities.html#Wisdom-Utilities">Wisdom Utilities</a>), compile
97 <code>tools/fftw-wisdom.c</code> and link it to the <code>libbench2</code> and FFTW
98 libraries
99
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