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Current fftw source
author Chris Cannam <cannam@all-day-breakfast.com>
date Tue, 18 Oct 2016 13:40:26 +0100
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3 <!-- This manual is for FFTW
4 (version 3.3.5, 30 July 2016).
5
6 Copyright (C) 2003 Matteo Frigo.
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8 Copyright (C) 2003 Massachusetts Institute of Technology.
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25 <title>FFTW 3.3.5: Installation on non-Unix systems</title>
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72 <a name="Installation-on-non_002dUnix-systems"></a>
73 <div class="header">
74 <p>
75 Next: <a href="Cycle-Counters.html#Cycle-Counters" accesskey="n" rel="next">Cycle Counters</a>, Previous: <a href="Installation-on-Unix.html#Installation-on-Unix" accesskey="p" rel="prev">Installation on Unix</a>, Up: <a href="Installation-and-Customization.html#Installation-and-Customization" accesskey="u" rel="up">Installation and Customization</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
76 </div>
77 <hr>
78 <a name="Installation-on-non_002dUnix-systems-1"></a>
79 <h3 class="section">10.2 Installation on non-Unix systems</h3>
80
81 <p>It should be relatively straightforward to compile FFTW even on non-Unix
82 systems lacking the niceties of a <code>configure</code> script. Basically,
83 you need to edit the <code>config.h</code> header (copy it from
84 <code>config.h.in</code>) to <code>#define</code> the various options and compiler
85 characteristics, and then compile all the &lsquo;<samp>.c</samp>&rsquo; files in the
86 relevant directories.
87 </p>
88 <p>The <code>config.h</code> header contains about 100 options to set, each one
89 initially an <code>#undef</code>, each documented with a comment, and most of
90 them fairly obvious. For most of the options, you should simply
91 <code>#define</code> them to <code>1</code> if they are applicable, although a few
92 options require a particular value (e.g. <code>SIZEOF_LONG_LONG</code> should
93 be defined to the size of the <code>long long</code> type, in bytes, or zero
94 if it is not supported). We will likely post some sample
95 <code>config.h</code> files for various operating systems and compilers for
96 you to use (at least as a starting point). Please let us know if you
97 have to hand-create a configuration file (and/or a pre-compiled binary)
98 that you want to share.
99 </p>
100 <p>To create the FFTW library, you will then need to compile all of the
101 &lsquo;<samp>.c</samp>&rsquo; files in the <code>kernel</code>, <code>dft</code>, <code>dft/scalar</code>,
102 <code>dft/scalar/codelets</code>, <code>rdft</code>, <code>rdft/scalar</code>,
103 <code>rdft/scalar/r2cf</code>, <code>rdft/scalar/r2cb</code>,
104 <code>rdft/scalar/r2r</code>, <code>reodft</code>, and <code>api</code> directories.
105 If you are compiling with SIMD support (e.g. you defined
106 <code>HAVE_SSE2</code> in <code>config.h</code>), then you also need to compile
107 the <code>.c</code> files in the <code>simd-support</code>,
108 <code>{dft,rdft}/simd</code>, <code>{dft,rdft}/simd/*</code> directories.
109 </p>
110 <p>Once these files are all compiled, link them into a library, or a shared
111 library, or directly into your program.
112 </p>
113 <p>To compile the FFTW test program, additionally compile the code in the
114 <code>libbench2/</code> directory, and link it into a library. Then compile
115 the code in the <code>tests/</code> directory and link it to the
116 <code>libbench2</code> and FFTW libraries. To compile the <code>fftw-wisdom</code>
117 (command-line) tool (see <a href="Wisdom-Utilities.html#Wisdom-Utilities">Wisdom Utilities</a>), compile
118 <code>tools/fftw-wisdom.c</code> and link it to the <code>libbench2</code> and FFTW
119 libraries
120 </p>
121 <hr>
122 <div class="header">
123 <p>
124 Next: <a href="Cycle-Counters.html#Cycle-Counters" accesskey="n" rel="next">Cycle Counters</a>, Previous: <a href="Installation-on-Unix.html#Installation-on-Unix" accesskey="p" rel="prev">Installation on Unix</a>, Up: <a href="Installation-and-Customization.html#Installation-and-Customization" accesskey="u" rel="up">Installation and Customization</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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