Just a little error, although it gets quit annoying if you need to fix it for every CVS build you want to compile.
When I run autogen.sh, I get warnings about undefined macros, which check for wxWidgets. I have it on my computer, but aclocal doesn't seem to find them. Perhaps it would be a good idea to bundle those macros with the source package.
Normally configure should ignore all stuff about wxWidgets, because I don't add --enable-wxfred2 as an option, but it stops with an error about the missing macro. Perhaps --disable-wxfred2 is not used as a default parameter?