I thought " But "-D...", "-I...", and "-B..." shall be removed." was asking me to remove them. I used -E, I said I produced the file. The bit I'm confused about is "Then compile prims.ii using". On Wed, May 18, 2022 at 8:43 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On Wed, 18 May 2022 at 11:39, Zopolis0 via Gcc-help > <gcc-help@xxxxxxxxxxx> wrote: > > > > I'm unable to use the system g++ to compile it as removing any of the > > includes breaks it, removing any of the -B arguments breaks it, but not > > removing the -B arguments break it. > > Don't remove them then, that's not what you were asked to do. > > > Not exactly sure how to compile a > > preprocessed file either. > > Rea the email you replied to, you use -E as described. > > > As it stands, I have been unable to reproduce the > > error or change any of the flags, although I have been able to produce a > > preprocessed file as per your instructions. > > Because you didn't follow the instructions. >