[piotrl@rincewind] ~ # file foo
foo: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
[piotrl@rincewind] ~ # file foo32
foo32: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
[piotrl@rincewind] ~ # ldd foo
        linux-vdso.so.1 (0x000002f4ab151000)
        libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libstdc++.so.6 (0x000002f4aac2f000)
        libm.so.6 => /lib64/libm.so.6 (0x000002f4aa93b000)
        libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/libgcc_s.so.1 (0x000002f4aa725000)
        libc.so.6 => /lib64/libc.so.6 (0x000002f4aa37f000)
        /lib64/ld-linux-x86-64.so.2 (0x000002f4aaf32000)
[piotrl@rincewind] ~ # ldd foo32
        linux-gate.so.1 (0xec655000)
        libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/32/libstdc++.so.6 (0xec555000)
        libm.so.6 => /lib32/libm.so.6 (0xec52a000)
        libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/32/libgcc_s.so.1 (0xec50e000)
        libc.so.6 => /lib32/libc.so.6 (0xec36c000)
        /lib/ld-linux.so.2 (0xec656000)