* warnings when compiling
@ 2002-10-21 3:05 Bui Ngoc Huy Binh
2002-10-21 4:05 ` Claudio Bley
0 siblings, 1 reply; 3+ messages in thread
From: Bui Ngoc Huy Binh @ 2002-10-21 3:05 UTC (permalink / raw)
To: gcc-help
Hi,
I use gcc release 3.2 to compile my programe. That's ok but
I got the warnings as:
cc1: warning: changing search order for system directory
"/usr/local/include"
cc1: warning: as it has already been specified as a non-system
directory
ignoring duplicate directory "/usr/local/include"
cc1: warning: changing search order for system directory "/usr/include"
cc1: warning: as it has already been specified as a non-system
directory
I don't understand and i don't know how to fix them ? Can you help me ?
Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: warnings when compiling
2002-10-21 3:05 warnings when compiling Bui Ngoc Huy Binh
@ 2002-10-21 4:05 ` Claudio Bley
2002-10-21 4:29 ` Bui Ngoc Huy Binh
0 siblings, 1 reply; 3+ messages in thread
From: Claudio Bley @ 2002-10-21 4:05 UTC (permalink / raw)
To: Bui Ngoc Huy Binh; +Cc: gcc-help
>>>>> "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 (")
Debian GNU/Linux advocate - against HTML email X
http://www.cs.uni-magdeburg.de/~bley/ & vCards / \
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: warnings when compiling
2002-10-21 4:05 ` Claudio Bley
@ 2002-10-21 4:29 ` Bui Ngoc Huy Binh
0 siblings, 0 replies; 3+ messages in thread
From: Bui Ngoc Huy Binh @ 2002-10-21 4:29 UTC (permalink / raw)
To: Claudio Bley; +Cc: gcc-help
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 (")
> Debian GNU/Linux advocate - against HTML email X
> http://www.cs.uni-magdeburg.de/~bley/ & vCards / \
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-10-21 4:05 ` Claudio Bley
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