fftw-3-single

[Takeshi Enomoto]

Hello,

Looking at the zlib example and the corresponding Fink package,
I created a merged version.
<http://trac.macosforge.org/projects/macports/ticket/11613>

I temporarily named it fftw3, different from fftw-3 and fftw-3-single.
The float libraries are a variant.
This minimizes the files to be installed.
(We could always use the double functions.)

Maybe they should not be and built by default.
This helps packages depend on fftw3.
One can expect both kinds are present.

We could simply append --without-gcc-arch to configure.args
for the i386 platform to fix the bug but I think
the packages should be merged.

What do you think?

<http://trac.macosforge.org/projects/macports/ticket/11613>

Takeshi