Problem installing Biobase on Solaris

Hi everyone

This is my first post to the list. I had experience installing and using 
Bioconductor on Linux and Windows systems but I am encountering problems 
installing Biobase on Solaris running on Sparc. The package compilation 
works fine, with only a warning

warning: implicit declaration of function `__builtin_isnan'

the help files are generated but in the end it fails with an error also 
related __builtin_isnan

** building package indices ...
Error in dyn.load(file, DLLpath = DLLpath, ...) :
 unable to load shared library 
'/usr/local/lib/R/library/Biobase/libs/Biobase.so':
 ld.so.1: R: fatal: relocation error: file 
/usr/local/lib/R/library/Biobase/libs/Biobase.so: symbol 
__builtin_isnan: referenced symbol not found
Calls: <Anonymous> ... tryCatch -> tryCatchList -> tryCatchOne -> 
<Anonymous>
Execution halted
ERROR: installing package indices failed

The machine I am using is a Sun SPARC Victoria Falls SunOS 5.10 
Generic_127111-11 sun4v sparc SUNW,T5140

I posted this message to the BioC list and it was suggested that I tried 
installing any R package that needed compilation. I installed the XML 
package with no problems. Any help is appreciated. Thanks in advance

Paulo