mkc_check_compiler has been reimplemented. This fixes problems
on system with /bin/sh == bash (affected versions: 0.21.1)
and makes it drammatically faster.
Target "errorcheck" ("configure") cannot work in parallel.
Fix bug appeared in parallel builds (make -j).
Thanks to Alexander Nasonov.
Support for IRIX64 and Haiku was implemented.
PDF presentation update
Minor clean-ups