https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115822
--- Comment #3 from Bruno Pitrus <brunopitrus at hotmail dot com> --- (In reply to Xi Ruoyao from comment #2) > And you can always use something like -ftabstop=10000 to "disallow mixing > tabs with spaces." `-ftabstop=10000` does not catch the example i provided above. (In reply to Andrew Pinski from comment #1) > This is not going to work as gnu coding style is a mix of spaces and tabs > always. I came up with this enhancement _specifically_ because the libstdc++ headers are hard to read due to inconsistent use of tabs vs spaces. If your editor is set to anything other than 8, the system headers look misleading.