o Minor buxfixes:
    - During configure, search for library containing cos function as
      libm lives in libcore on some platforms (BeOS/Haiku).
      Linking against libm was hard-coded before. Bugfix on
      0.2.2.2-alpha, fixes the first part of bug 4727. Patch and
      analysis by Martin Hebnes Pedersen.
    - Preprocessor directives should not be put inside the arguments
      of a macro. This would break compilation with GCC releases prior
      to version 3.3. Bugfix on 0.2.3.3-alpha, fixes the other part of
      bug 4727. Patch and analysis by Martin Hebnes Pedersen.