bogus gcc versoion check

[Joern Rennecke]

newlib/libc/include/machine/_default_types.h has this code:

#if defined(__GNUC__) && (__GNUC__ >= 3 ) \
  && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ > 2 )
/* GCC >= 3.3.0 has __<val>__ implicitly defined. */

This fails to do the intended version check for gcc 4.0, 4.1 and 4.2 .