verify.h

[Jim Meyering]

Hi Paul,

I'd like to use gnulib's verify.h in libvirt, but
that project is currently constrained to be LGPLv2,
so the license conflicts.  Considering that verify.h
is just these few lines in the C case,

  #  define verify_true(R) \
       (!!sizeof \
        (struct { unsigned int verify_error_if_negative_size__: (R) ? 1 : -1; 
}))
  #define verify(R) extern int (* verify_function__ (void)) [verify_true (R)]

What do you think about changing the license to be LGPLv2+?

Jim