-bash-3.00$ uname -a SunOS reia 5.10 Generic_137137-09 sun4v sparc SUNW,Sun-Blade-T6320 -bash-3.00$ perl -Mthreads -e 'print $threads::VERSION . "\n"'; perl -Mthreads::shared -e 'print $threads::shared::VERSION . "\n"' ; perl -v 1.71 1.27 This is perl, v5.8.8 built for sun4-solaris-thread-multi #### -bash-3.00$ uname -a SunOS deimos 5.10 Generic_138889-03 i86pc i386 i86pc -bash-3.00$ perl -Mthreads -e 'print $threads::VERSION . "\n"'; perl -Mthreads::shared -e 'print $threads::shared::VERSION . "\n"' ; perl -v 1.72 1.28 This is perl, v5.8.8 built for i86pc-solaris-thread-multi #### $ uname -a Linux communicator 2.6.27-11-generic #1 SMP Wed Apr 1 20:57:48 UTC 2009 i686 GNU/Linux $ perl -Mthreads -e 'print $threads::VERSION . "\n"'; perl -Mthreads::shared -e 'print $threads::shared::VERSION . "\n"' ; perl -v 1.67 1.14 This is perl, v5.10.0 built for i486-linux-gnu-thread-multi