On 3 May 2013 07:49, Paul Hansen wrote: > Thank you very much for your answer. > > Your crystal ball works fine :-) > Actually, in this case, I want GCC 4.5 to behave like on the Mac. Ah yes, I misread your original post, sorry. > Do you know if there is there is an option to make GCC 4.5 behave like > the on the Mac? I don't *think* there is an option for that (but could be wrong.) Continuing when a header is missing is usually useless and produces a cascade of unhelpful errors. What are you trying to achieve? If you want dependency generation to work even with a missing header then try the -MG option.