Andy,
I assume (since you're using "xlc" that you are on an AIX system).
The error messages concerning multiply defined macros are only
WARNING/INFORMATIONAL.
mpcc -o A2A A2A.c
"A2A.c", line 16.9: 1506-236 (W) Macro name TIMEOUT has been redefined.
"A2A.c", line 16.9: 1506-358 (I) "TIMEOUT" is defined on line 15 of A2A.c.
echo $?
0
If they are causing hassle, you can turn off all error messages by including the
"xlc" option "-w", or (BETTER STILL) you can just turn off these specific ones
by using the "xlc" option:
-qsuppress=1506-236:1506-358
Regards
Neil
Andy Young wrote:
> Hi Jeff,
> Thanks for answering my post again Jeff. I looked
> through the xlc compiler manual, but I could not find
> a compiler option that will disable the behavior of
> allowing only one macro definition. I do not know how
> to program in C (I use fortran,) so it really is
> possible that I overlooked something. It seems like
> the options that you can give to the preprocessor are
> quite limited. Most of the options you can pass to
> xlc are for compiling options. So I am sort of at a
> loss. Well maybe I'll look over than manual again and
> see if I missed anything.
> -Andy Young
> JHU chemistry
>
>
>
> --- Jeff Squyres <jsquyres_at_[hidden]> wrote:
>
>>On Fri, 21 May 2004, Andy Young wrote:
>>
>>
>>>I am confused about what to do with this make
>>
>>error. It says that a
>>
>>>macro has been already defined. I have attached
>>
>>the output to this
>>
>>>message, as well as the script that I put the
>>
>>configure flags into
>>
>>>(setuplam.s.)
>>
>>A tip for you with tcsh -- note that your script
>>continued despite the
>>fact that "make" failed.
>>
>>You might want to change it a little to be:
>>
>>/wrk2/andy/lam-7.0.4/configure ....all the configure
>>args... \
>> >& lamsetups.txt && \
>> make >>& lamsetups.txt && \
>> make install >>& lamsetups.txt
>>
>>Then "make" and "make install" will only run if the
>>previous steps
>>succeeded. Indeed, you can actually combine the two
>>"make" steps by "make
>>all install".
>>
>>Just a friendly tip...
>>
>>
>>>This error is different than the one I was having
>>
>>earlier, which was
>>
>>>caused by an AIX xlc6.0 compiler failure under
>>
>>heavy optimization.
>>
>>This appears to be beacause we're defining the same
>>macro twice. This
>>actually doesn't cause a problem in any other
>>compiler -- we're defining
>>it to be the same value in both places (it's a long,
>>complicated story).
>>So in a central config header file (lam_config.h)
>>we're #defining LAM_CC
>>to be "xlc". Then, we're #defining it again it
>>lam-ssi-boot-globus-config.h (to be the same value).
>> This will actually
>>happen in all the SSI subdirectories; disabling the
>>globus module won't
>>help.
>>
>>Is there an xlc command line parameter that can
>>disable this error?
>>
>>--
>>{+} Jeff Squyres
>>{+} jsquyres_at_[hidden]
>>{+} http://www.lam-mpi.org/
>>_______________________________________________
>>This list is archived at
>
> http://www.lam-mpi.org/MailArchives/lam/
>
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Friends. Fun. Try the all-new Yahoo! Messenger.
> http://messenger.yahoo.com/
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
--
+-----------------+---------------------------------+------------------+
| Neil Storer | Head: Systems S/W Section | Operations Dept. |
+-----------------+---------------------------------+------------------+
| ECMWF, | email: neil.storer_at_[hidden] | //=\\ //=\\ |
| Shinfield Park, | Tel: (+44 118) 9499353 | // \\// \\ |
| Reading, | (+44 118) 9499000 x 2353 | ECMWF |
| Berkshire, | Fax: (+44 118) 9869450 | ECMWF |
| RG2 9AX, | | \\ //\\ // |
| UK | URL: http://www.ecmwf.int/ | \\=// \\=// |
+--+--------------+---------------------------------+----------------+-+
| ECMWF is the European Centre for Medium-Range Weather Forecasts |
+-----------------------------------------------------------------+
|
