3.14 Options for Directory Search -Idir This is to ensure that GCC’s procedure to fix buggy system headers and the ordering for the include next directive are not inadvertently hanged. ----------------------------- Sorry I do not have the answer yet!! I understood "include_next" directive but what is the procedure of GCC to fix the system headers? When we specify a path with -I and it is ignored because there is the same name in the system directories, how it can fix the system headers then? On Tue, Apr 26, 2011 at 6:58 PM, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > > ali hagigat <hagigatali@xxxxxxxxx> writes: > > > 3.14 Options for Directory Search > > If a standard system include directory, or a directory specified with > > ‘-isystem’, is also specified with ‘-I’, the ‘-I’ option will be > > ignored. The directory will > > still be searched but as a system directory at its normal position in > > the system include chain. > > ----------------------------------------------- > > What does that mean? Does it mean that the file is found at the > > location -I has specified but it is marked as a system directory? or > > the path specified by -i is ignored? > > It means that if you say "-I dir -isystem dir" the -I option is > ignored. It is as though you only said "-isystem dir". > > Ian
