Re: warnings when compiling

[Bui Ngoc Huy Binh <Binh.Bui@sophia.inria.fr>]

that's ok now. 

thanks.
:)


Claudio Bley wrote:
> 
> >>>>> "Bui" == Bui Ngoc Huy Binh <Binh.Bui@sophia.inria.fr> writes:
> 
>     Bui> Hi, I use gcc release 3.2 to compile my programe. That's ok
>     Bui> but I got the warnings as:
> 
>     Bui> cc1: warning: changing search order for system directory
>     Bui> "/usr/local/include" cc1: warning: as it has already been
>     Bui> specified as a non-system directory ignoring duplicate
>     Bui> directory "/usr/local/include" cc1: warning: changing search
>     Bui> order for system directory "/usr/include" cc1: warning: as it
>     Bui> has already been specified as a non-system directory
> 
>     Bui> I don't understand and i don't know how to fix them ? Can you
>     Bui> help me ?
> 
> I suppose you installed gcc in /usr/local. GCC then regards
> /usr/local/include as a system include directory which implicitly is
> searched for header files after any other non-system include
> directories.
> 
> If you specify -I/usr/local/include (what you don't need to) GCC
> denotes this directory now as a non-system directory and thus changes
> the search order for header files which it was just kind enough
> informing you about.
> 
> Just don't specify /usr/local/include as non-system include directory
> if it already is a system directory.
> 
> >From 'man cpp':
> 
> -I directory
>     Add the directory directory to the end of the list of directories
>     to be searched for header files.  This can be used to override a
>     system header file, substituting your own version, since these
>     directories are searched before the system header file
>     directories.  If you use more than one `-I' option, the
>     directories are scanned in left-to-right order; the standard
>     system directories come after.
> 
> --
> Claudio Bley                                 ASCII ribbon campaign (")
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