Why do I get /usr/lib64 on a 32bit machine?

["Lesley Binks" <lesley.binks@googlemail.com>]

Hi

I have a Barton core running Debian etch (kernel version 2.6.18-6-486
) and have noticed that I get this

l /usr/lib64
total 572
-rw-r--r-- 1 root root   1822 2007-01-01 21:36 libfrtbegin.a
-rw-r--r-- 1 root root 569740 2007-01-01 21:36 libg2c.a
-rw-r--r-- 1 root root    728 2007-01-01 21:29 libg2c.la
lrwxrwxrwx 1 root root     15 2008-01-30 15:51 libg2c.so -> libg2c.so.0.0.0

after installing gcc, g77 and it's recommended/suggested packages. At
least that's when I think they appear.  Note the lack of
libg2c.so.0.0.0 in that directory.

I apt-get removed and dpkg -P'd these packages and the libraries are
still there.

I do have

-rw-r--r-- 1 root root 1126 2007-01-01 21:36 /usr/lib/libfrtbegin.a

and
-rw-r--r-- 1 root root 342962 2007-01-01 21:36 /usr/lib/libg2c.a
-rw-r--r-- 1 root root    726 2007-01-01 21:29 /usr/lib/libg2c.la
lrwxrwxrwx 1 root root     15 2008-01-30 15:51 /usr/lib/libg2c.so ->
libg2c.so.0.0.0
lrwxrwxrwx 1 root root     15 2008-01-23 00:30 /usr/lib/libg2c.so.0 ->
libg2c.so.0.0.0
-rw-r--r-- 1 root root 109700 2007-01-01 21:36 /usr/lib/libg2c.so.0.0.0

which all seem correct.

How do I find out what installed these libraries - i.e. discover what
depends on these libraries so that I may decide what to do?

Also, is it a bug that these 64 bit libraries are installed on a 32 bit machine?

Regards

L.