[Mingw-users] use gcc 3.1

[lian <tr...@si...>]

when I download gcc 3.1 package, and overwrite old gcc 2.95, and compile my
sourcecode, ft, serval error.
err1:  redeclaration of C++ built-in type `wchar_t',
	How can I close the built-in type defines?
err2:  ld.exe: cannot find -lmingwex
	Where can I get file libmingwex.a?