https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109988
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2023-05-26 Keywords| |documentation Component|c++ |preprocessor Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- It has been the same as -isystem since at least r0-21114-g0b22d65c9a10ce (March 1999). The documentation was changed (added to) at r0-35796-gf3c9b8530c78ce (June 2001) to specify the same as -idirafter even though the implementation was something different .... I don't know what the correct thing to do really since it has been almost 22 years of having the documentation not match the implementation ... Maybe just update the documentation .... Confirmed either way.