Log Message:
Update to 2.1.5:
Version 2.1.5 (3/24/2003)
  * Bug fix: Fortran wrappers were disabled in version 2.1.4.
Version 2.1.4 (3/16/2003)
  * Upgraded to newer versions of autoconf, etcetera, to fix compilation
    problems on various recent systems.
  * The configure script no longer picks the wrong architecture flags
    (which caused FFTW to crash) on newer IBM POWER machines running AIX.
  * Multi-threaded transforms should now utilize multiple CPUs on
    Solaris (which creates threads in single-processor mode by default).
  * Added experimental support for OpenMP (and SGI MP) compiler
    parallelization directives in the multi-threaded transforms,
    instead of using explicit thread spawning.  Enable by configuring
    --with-openmp or --with-sgi-mp in addition to --enable-threads.
  * Expanded FAQ.