Notable changes:
1. Pick the .lzma version of the vendor's distfile. Although
adds archivers/lzma to EXTRACT_DEPENDS, the savings make
it worth the trouble.
2. Disable parallel build, until the vendor figures out, what
broke it.
3. Disable use of our libtool -- somehow that does not work
any more. It would be nice, if our libtool-maintainers could
look into it -- just uncomment the relevant line in the new
Makefile and attempt building.
4. Most of the things are now installed into "versioned" directories:
"ImageMagick-6.4.0" instead of "ImageMagick".
5. API-headers now go into ${PREFIX}/include/ImageMagick instead of
directly into ${PREFIX}/include. This will make co-existence with
GraphicsMagick much easier.
fa42a4a9f4