[Ecls-list] Problem with ECL + Maxima combo on OpenSolaris x64

[Dr. David Kirkby]

I'm trying to build Sage on OpenSolaris. I've built it on 32-bit SPARC on 
Solaris 10, but are now trying 64-bit on the Intel/AMD processors.

I get a problem which manifests itself with the error message:

ld.so.1: ecl: fatal: relocation error: R_AMD64_PC32: file 
/export/home/drkirkby/sage-4.4.2/local/lib//libecl.so: symbol main: value 
0x22800097de04 does not fit

(you can see more details, and the fuller message at 
http://trac.sagemath.org/sage_trac/ticket/9099 )

Googling, it would appear a number of people get this problem come up on various 
bits of software, so it is not specific to Maxima or specific to ECL.

http://developers.sun.com/solaris/articles/about_amd64_abi.html

Has a couple of suggestions.

#####################################
  1. Using the -Kpic option. This creates a position independent code. But the 
compiler will generate 64-bit memory reference by using register indirection via 
the Global Offset Table with the R_AMD64_GOTPCREL relocatable type. This will 
work fine as long as the difference between the current code location and the 
location in the Global Offset Table for the corresponding data object is less 
than 32 bits.

2. Allocate all static data objects in heap. Then reference the objects via 
pointer indirection.

Note the workaround may have a small performance degradation in memory access 
due to reference indirection.
======================================

Since I'm using gcc, the -fPIC option is the one to get position independant 
code. I'm not sure if ECL builds the library with PIC code.

The second workaround may be better, as there is no warning about the 32-bit 
offset.

Any thoughts on the best way forward?

Dave