Per Bothner <[EMAIL PROTECTED]> writes: ... > However, we end up with preprocessor output like this: > > # 1 "any-file" > # 0 "<built-in>" > # 1 "<command line>" > # 1 "any-file" > > Some assemblers complain about line number 0. This is especially > an issue for people who use cpp to preprocessor assembler, which > of course we don't really support. > > My suggested solution: suppress the output of <built-in>, so > we get: > # 1 "any-file" > # 1 "<command line>" > # 1 "any-file" > > There should never be anything following <built-in>, so it's useless > as well as confusing.
Stuff does appear between <built-in> and <command line> with -g3, -dD, and possibly some of the other -d switches. That is why they're there. I would have no objection to suppressing it (and <command line> too) when none of those options is in use. zw
