[MITgcm-support] compiling error in the latest sources of MITgcm on irix64!

[Ed Hill]

On Tue, 2005-07-26 at 12:50 -0400, Van Thinh Nguyen wrote:
> 
> I tried to update the old sources of MITgcm (using cvs update command),
> after that I re-compile my old model (this is compiled and ran (mpi)
> without any error by old sources), then I've got following error:
> ---
> ld64: ERROR   33 : Unresolved text symbol "timenow_" -- 1st referenced by timers.o.

> Anyone may know about this error, please give me an advice.

Hi Van Thinh,

The problem is that your Fortran compiler doesn't support the timenow()
function and there are at least two ways that you can fix it:

 1) quick and easy fix :  use the genmake2 "-ignoretime" option to 
    turn off the timing code entirely -- MITgcm will run just 
    fine (you will get correct results) but the information about 
    how much time is spent in various subroutines will be useless

 2) difficult but more satisfying fix :  look at all the optfiles 
    in MITgcm/tools/build_options and figure out which values of CC 
    and FC_NAMEMANGLE will allow you to compile and call C code 
    from your Fortran subroutines. 

Ed

-- 
Edward H. Hill III, PhD
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