[Bug middle-end/48087] [4.5/4.6/4.7 Regression] -Wall -Werror adds warnings over and above those generated by -Wall

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48087

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-18 
09:41:11 UTC ---
Indeed, after a day of work I should not even try sending drafts. Anyway, the
substantive point I was missing is *per function*.

Is there a simple explanation for why the problem didn't show up in 4.4.x?