Re: [eclipse-clp-users] Problem Compiling from Source

George K wrote:
> Hi All,
> 
> I'm trying (sorry newbie) to compile Eclipse_6.0_80 from source and am
> getting the following error...
> 
> ---
> ./sepia -D .. -e "compile(\"../lib/rationals.pl\",\
> 		[debug:off,srcroot:\"../..\",outdir:\"../../lib\",output:eco])"
> type error in /(1076489008, 3, _93551)
> abort
> make[1]: *** [../../lib/rationals.eco] Error 2
> make[1]: *** Deleting file `../../lib/rationals.eco'
> make[1]: Leaving directory
> `/home/george/Documents/src/Eclipse_6.0_80/Kernel/i386_linux'
> make: *** [make_kernel] Error 2
> ---
> 
> I'm using ARCH=i386_linux on Ubuntu 8.04.  Config ends successfully.
> Same problem with all versions (inc Dev) of 6. Version 5 has (other)
> problems compiling as well. Any ideas?
> 
> Thanks,
> George.
> 
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Hi George,

I think the problem is that you are compiling without GMP support -- GMP 
is the GNU Mulitple Precisiion arithmetic library, a thirdparty package 
we use to support bugnums (integers larger than the machine's word 
length) and rationals (which uses bignums).

configure is supposed to detect if you want to build ECLiPSe with GMP or 
not, and it should be able to build ECLiPSe without GMP, which means 
that bugnums and rationals will not be supported. The problem is that 
compiling rational.pl essentially assumes support for rational, and the 
type error you are seeing is because the division is trying to generate 
a rational, which is not supported.

I am not sure how this error has slip through, and I will patch ECLiPSe 
to fix it. To work around the problem, you can either build ECLiPSe with 
GMP support, or you can change the build process to avoid compiling 
rationals.pl -- to do this, you need to edit Makefile.in in Kernel/src, 
find rationals.pl, which is in a list for PL_ECO_LIBRARIES (this defines 
.pl files that will be compiled into eco files). Remove rationals.pl 
from this list, and rebuild ECLiPSe by running configure and make again.

Cheers,

Kish

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