http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48135
--- Comment #2 from Denis Excoffier <Denis.Excoffier at airbus dot com> 2011-03-15 15:09:37 UTC --- Oh, thank you for pointing, but i should not be concerned since i didn't modify the sources (i simply include gmp/mpfr/mpc within the source directory tree). Perhaps this is a side-effect because two files have the same mtime (that will disappear with the final gcc-4.6.0)?