[CentOS] question on compatibility and ldd

m.roth at 5-cent.us m.roth at 5-cent.us
Fri Jul 15 16:51:14 UTC 2011

Jerry Geis wrote:
> I have a number of programs I wrote on Centos 5 (x86_64) and for one of
> the programs I do
> ldd programX
>         linux-vdso.so.1 =>  (0x00007fff2cb86000)
>         libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003528600000)
>         libm.so.6 => /lib64/libm.so.6 (0x0000003527e00000)
>         libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x0000003531400000)
>         libz.so.1 => /usr/lib64/libz.so.1 (0x0000003528a00000)
>         libc.so.6 => /lib64/libc.so.6 (0x0000003527a00000)
>         /lib64/ld-linux-x86-64.so.2 (0x0000003527600000)
>         libdl.so.2 => /lib64/libdl.so.2 (0x0000003528200000)
> On C6 I do the same thing and the numbers in (Y) might change but
> everything else is the same for libraries.
> Is it safe to assume then that if I switch to C6 and recompile my program
> and then put the C6 version on all my C5 systems (updates that kind of
> thing) that everything will be compatible and run just fine.

Unless they've changed the API i/o, it should work.


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