https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78359
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to hugo74 from comment #2) > (In reply to Andrew Pinski from comment #1) > > Because > > int Counter > > > > in the global scope is consider a tentative definition. > > What is meant by "tentative declaration" ? It is very misleading. C is a weird langauge. > It should not work that way. I checked it in other C compilers and each of > them reports an redefinition error in such case. Are you sure they were C compilers and not C++ compilers? C and C++ differ here.
