[Clas_offline] help needed in compiling clas package

[Paul Mattione]

I suggest looking in the software repository to see if this was fixed in a later version of the code, and if so just copy that change to your version.  

 - Paul

On Aug 30, 2013, at 1:47 PM, Jixie Zhang wrote:

> HI,
> 
>   I am trying to compile some old version of CLASPACK for CentOS6.2 with gfortran.
> 
> I have already done this job using g77 with 32-bit option: "g77 -m32".
> But I encountered with some problem when I switched to gfortran with 64 bit option.
> 
> The source file that give me error message is 
> /w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/ana/fill_seb_ntn.F
> The error is Arithmetic overflow.  
> 
> Again, it works fine if you switch the compiler to g77 -m32 
> I think the best way to solve this error to do some small changes in the source code. 
> I think the owner|author of this file will know it better.
> I also know that using option -fno-range-check with gfortran will also get it through.  
> But I am not very sure if this option will cause any potential problem.
> 
> 
> 
> 
> The compile command and error message is here:
> 
> ifarm1102> gfortran -O2 -m64 -fno-automatic -finit-local-zero -ffixed-line-length-none -fno-second-underscore -DLinux -DLinux64 -I. -I../inc_derived/ -I../include/ -I./ -I../ec -I../sc -I../cc -I../seb -I../trk -I../lac -I../user -I../icf -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/ec -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/sc -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/cc -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/seb -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/trk -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/lac -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/user -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/icf -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/include -I/w/hallb-1/bonus/jixie/clas/builds/release-4-15/packages/inc_derived -I/usr/include -I/usr/include -c fill_seb_ntn.F -o /w/hallb-1/bonus/jixie/clas/builds/release-4-15/obj/Linux64RH6/ana/fill_seb_ntn.o
> 
> fill_seb_ntn.F:139.31:
> 
>          stbit=int(iw(ind3+1)/2**31)
>                                1
> Error: Arithmetic overflow at (1)
> fill_seb_ntn.F:140.38:
> 
>          htbit=int((iw(ind3+1)-stbit*2**31)/2**30)
>                                       1
> Error: Arithmetic overflow at (1)
> 
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