./real.exe: /usr/pgi/linux86-64/6.0/lib/libpthread.so.0: version `GLIBC_2.3.3' not found (required by /lib64/tls/librt.so.1)
I think I know where the problem lies:
on FC3 i386 system: # find /lib | grep libpthread /lib/i686/libpthread.so.0 /lib/i686/libpthread-0.10.so /lib/libpthread.so /lib/tls/libpthread.so.0 /lib/tls/libpthread-2.3.5.so /lib/libpthread.so.0 /lib/libpthread-0.10.so
obviously we have tls and non-tls versions of libpthread. Apparently the /usr/pgi does not have a tls version of libpthread (which should be in /usr/pgi/linux86-64/6.0/lib/tls/libpthread.so.0) thus causing tls to fail and come into conflict with the default tls enabled librt from glibc.
The 'proper' solution would be for the compiler to come with a tls enabled libpthread (maybe report a bug) - the 'improper' is to make the ld-linux loader skip trying the tls glibc libraries. Either by turning of tls (LD_PRELOAD_ASSUME=2.4.1) or by preloading the correct non-tls libraries (something like LD_PRELOAD=/lib64/librt.so.1 ...) possibly having to list more then just one library (separated by colons or semicolons in double quotes)
Cheers, MaZe.