PATCH: Detect libutf8/wchar.h during configure

[David Jedlinsky]

OpenBSD puts the wchar.h file into a utf8 subdirectory, and uses a
libutf8.a library.  I added a rule to configure to detect this situation,
and adjust accordingly.

Also, I had a problem with the new check for the shared libkpathsea
library; for some reason the shared_size variable was not being set.  I
altered the code to something which does work, and I believe won't fail on
other systems.

-Dave Jedlinsky

patch
Description: Patch