[proaudio] calf plugins do not build anymore

[Ede Wolf <listac@xxxxxxxxxxxxxxxx>]

requiring rfftw.h, which is not installed, even though fftw is.

....
checking for XML_Parse in -lexpat... yes
checking rfftw.h usability... no
checking rfftw.h presence... no
checking for rfftw.h... no
configure: error: FFTW2 header (rfftw.h) not found

!!! Please attach the following file when seeking support:
!!! /tmp/build/portage/media-plugins/calf-9999/work/calf-9999/config.log
 * ERROR: media-plugins/calf-9999 failed (configure phase):
 *   econf failed
 *
 * Call stack:
 *          ebuild.sh, line   85:  Called src_configure
 *        environment, line 2803:  Called econf
'--with-ladspa-dir=/usr/lib64/ladspa' '--with-dssi-dir=/usr/lib64/dssi'
'--with-lv2-dir=/usr/lib64/lv2' '--disable-debug' '--without-ladspa'
'--with-lv2'
 *   phase-helpers.sh, line  467:  Called die
 * The specific snippet of code:
 *                      die "econf failed"
 *
 * If you need support, post the output of 'emerge --info
=media-plugins/calf-9999',
 * the complete build log and the output of 'emerge -pqv
=media-plugins/calf-9999'.
 * This ebuild is from an overlay named 'proaudio':
'/usr/src/gentoo/layman/pro-audio/'
 * The complete build log is located at
'/var/log/portage/media-plugins:calf-9999:20120318-144741.log'.
 * The ebuild environment file is located at
'/tmp/build/portage/media-plugins/calf-9999/temp/environment'.
 * S: '/tmp/build/portage/media-plugins/calf-9999/work/calf-9999'

>>> Failed to emerge media-plugins/calf-9999, Log file:

>>>  '/var/log/portage/media-plugins:calf-9999:20120318-144741.log'

 * GNU info directory index is up-to-date.


# qlist -Iv fftw
sci-libs/fftw-3.2.2