odb pre-compiled include errors

➜  hello $ odb -d sqlite -q person.hxx // <- odb from /usr/local/bin, compiled with GCC
➜  hello $ ~/odb-2.3.0-i686-macosx/bin/odb -d sqlite -q person.hxx // <- odb pre-compiled from code-synthesis website
In file included from /Users/Max13/Downloads/odb-2.3.0-i686-macosx/lib/odb/i686-apple-darwin8/bin/../lib/gcc/i686-apple-darwin8/4.7.3/../../../../include/c++/4.7.3/bits/postypes.h:42:0,
                 from /Users/Max13/Downloads/odb-2.3.0-i686-macosx/lib/odb/i686-apple-darwin8/bin/../lib/gcc/i686-apple-darwin8/4.7.3/../../../../include/c++/4.7.3/bits/char_traits.h:42,
                 from /Users/Max13/Downloads/odb-2.3.0-i686-macosx/lib/odb/i686-apple-darwin8/bin/../lib/gcc/i686-apple-darwin8/4.7.3/../../../../include/c++/4.7.3/string:42,
                 from <standard-odb-prologue>:7:
/Users/Max13/Downloads/odb-2.3.0-i686-macosx/lib/odb/i686-apple-darwin8/bin/../lib/gcc/i686-apple-darwin8/4.7.3/../../../../include/c++/4.7.3/cwchar:46:19: fatal error: wchar.h: No such file or directory
compilation terminated.