On Tue, 19 Aug 2014, Manuel L?pez-Ib??ez wrote: > The following patch adds a new CPP() to *.opt files that tells the > options machinery to keep in sync libcpp options and GCC options. > > This will allow us to fix a lot of latent bugs where CPP warnings do > not follow the rules of other warnings options. In this patch, I only > deal with Wvariadic-macros, but I will convert others in follow-up > patches. (Nonetheless, help is very much appreciated. There are a lot > of them.) > > For Wvariadic-macros, the c.opt and the documentation says it is > enabled by default, but this was not true. It is only enabled if > -Wpedantic or -Wtraditional are given. Worse, even if you give > -Wvariadic-macros, the warnings were not enabled. Of course, neither > #pragmas nor other nice things worked. All this is simply fixed by > using the common machinery and just taking care of keeping libcpp and > gcc in sync. > > Bootstrapped and regression tested on x86_64-linux-gnu. > > OK?
OK. -- Joseph S. Myers jos...@codesourcery.com
