[MITgcm-support] Custom CPP_OPTIONS.h ignored

[Martin Losch]

Hi Yuxin,

can you report your exact sequence of commands, after putting the customized CPP_OPTIONS.h file into “code”, to arrive at the error message? 
It’s important that you rerun “genmake2” (or more conveniently run "make makefile”, which reruns genmake2 with the same options as the first time) ***after*** moving files around.

Martin

> On 12. Jul 2021, at 07:16, Yuxin Zhou <yzhou at ldeo.columbia.edu> wrote:
> 
> Hi all,
> I'm trying to run "tutorial_global_oce_latlon" with a custom CPP_OPTIONS.h in ./code, so that I can enable the "NONLIN_FRSURF" flag. However, genmake2 seems to have ignored the new CPP_OPTIONS.h file, as I still get the following error:
> 
> (TID 0001) CONFIG_CHECK: #undef NONLIN_FRSURF and
> (TID 0001) CONFIG_CHECK: nonlinFreeSurf is non-zero
> (TID 0001) CONFIG_CHECK: rStar is part of NonLin-FS
> (TID 0001) CONFIG_CHECK: ==> set #define NONLIN_FRSURF to use it
> (TID 0001) CONFIG_CHECK: detected  2 fatal error(s)
> (TID 0001) S/R ALL_PROC_DIE: ending the run
> STOP ABNORMAL END: S/R CONFIG_CHECK
> 
> In fact, I tried writing gibberish in my CPP_OPTIONS.h file and genmake2 didn't complain as I thought it should. Any idea as to why this happens? Here is the full content of my CPP_OPTIONS.h:
> 
> #ifndef CPP_OPTIONS_H
> #define CPP_OPTIONS_H
> 
> C CPP flags controlling particular source code features
> 
> C o Allow the use of Non-Linear Free-Surface formulation
> C   this implies that surface thickness (hFactors) vary with time
> #define NONLIN_FRSURF
> 
> C o Execution environment support options
> #include "CPP_EEOPTIONS.h"
> 
> #endif /* CPP_OPTIONS_H */
> 
> Many thanks,
> Yuxin
> --
> Yuxin Zhou
> https://www.ldeo.columbia.edu/~yzhou/
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> MITgcm-support at mitgcm.org
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