Hi, On Thu, Aug 9, 2012 at 1:42 PM, Joseph S. Myers <jos...@codesourcery.com> wrote: > On Thu, 9 Aug 2012, Bruce Korb wrote: >> This command: >> >> gcc -Wno-format-contains-nul -Wall -Werror >> >> falls over if a format string contains a nul byte. >> I think it should not. There needs to be a way for > > Indeed. My model for how options should interact in such cases is > appendix 1 of <http://gcc.gnu.org/ml/gcc/2010-01/msg00063.html>.
Our models agree. My approach would be fairly simple. if option A implies a setting for option B, then the state of option B is checked before making a change. If it is unset from load time, it is changed. Otherwise, the levels of indirection used to set B are examined. If it is greater than the levels from A to B, it is modified and the indirection count from A to B is saved with the setting. A always gets set with an indirection count of zero. This would likely be my biggest foray into GCC, so nobody hold your breath. :)
