Hi, I'm just a lurker, but... On 8/9/16, Paolo Bonzini <bonz...@gnu.org> wrote: > Index: gcc/c-family/c.opt > =================================================================== > --- gcc/c-family/c.opt (revision 239276) > +++ gcc/c-family/c.opt (working copy) > @@ -506,6 +506,10 @@ Wdouble-promotion > C ObjC C++ ObjC++ Var(warn_double_promotion) Warning > Warn about implicit conversions from \"float\" to \"double\". > > +Wexpansion-to-defined > +C ObjC C++ ObjC++ CppReason(CPP_W_EXPANSION_TO_DEFINED) > Var(cpp_warn_expansion_to_defined) Init(-1) Warning > +Warn if an undefined macro is used in an #if directive. > +
Isn't "Warn if an undefined macro is used in an #if directive" the same description that -Wundef uses in c.opt? Did you copy and paste and forget to update that part? Eric
