dependency hell

root@bigbrother:/# slapt-get --install gcc
Reading Package Lists... Done
The following packages will be upgraded:
gcc
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 5MB of archives.
After unpacking 4MB of additional disk space will be used.
Do you want to continue? [y/N] y
Downloading ftp://ftp.sunet.se/pub/Linux/distrib...lackware-12.0/ gcc 4.1.2-i486-1 [5MB]...Done

Preparing to replace gcc-3.4.6-i486-1 with gcc-4.1.2-i486-1
mv: /lib/libc.so.6: version `GLIBC_2.4' not found (required by mv)
mv: /lib/libc.so.6: version `GLIBC_2.4' not found (required by mv)

+================================================= =============================
| Upgrading gcc-3.4.6-i486-1 package using /var/slapt-get/./slackware/d/gcc-4.1.2-i486-1.tgz
+================================================= =============================

Pre-installing package gcc-4.1.2-i486-1...

No such package: /var/log/packages/*-2008-01-10,20:37:36*. Can't remove.

Cannot install /var/slapt-get/./slackware/d/gcc-4.1.2-i486-1.tgz: package is corrupt (failed 'gzip -l /var/slapt-get/./slackware/d/gcc-4.1.2-i486-1.tgz')
Package gcc-3.4.6-i486-1 upgraded with new package /var/slapt-get/./slackware/d/gcc-4.1.2-i486-1.tgz.

Done
root@bigbrother:/# slapt-get --search glibc
glibc 2.5-i486-4 [inst=no]: glibc (GNU C libraries)
glibc-i18n 2.5-noarch-4 [inst=no]: glibc-i18n (locale files from glibc)
glibc-profile 2.5-i486-4 [inst=no]: glibc-profile (GNU C libraries with profiling support)
glibc-solibs 2.5-i486-4 [inst=no]: glibc-solibs (shared GNU C libraries)
glibc-zoneinfo 2.5-noarch-4 [inst=no]: glibc-zoneinfo (timezone database)
glibc-zoneinfo-2.5 noarch-7_slack12.0 [inst=no]: c-zoneinfo (timezone database)
glibc-solibs 2.3.4-i486-1 [inst=yes]: glibc-solibs (shared GNU C libraries)
glibc-zoneinfo 2.3.4-noarch-1 [inst=yes]: glibc-zoneinfo (time zone database)
glibc 2.3.4-i486-1 [inst=yes]: glibc (GNU C libraries)
glibc-i18n 2.3.4-noarch-1 [inst=yes]: glibc-i18n (locale files from glibc)
glibc-profile 2.3.4-i486-1 [inst=yes]: glibc-profile (GNU C libraries with profiling support)
root@bigbrother:/# slapt-get --install glibc
Reading Package Lists... Done
The following packages will be upgraded:
glibc
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 22MB of archives.
After unpacking 19MB of additional disk space will be used.
Do you want to continue? [y/N] y
Downloading ftp://ftp.sunet.se/pub/Linux/distrib...lackware-12.0/ glibc 2.5-i486-4 [22MB]...Done

Preparing to replace glibc-2.3.4-i486-1 with glibc-2.5-i486-4
mv: /lib/libc.so.6: version `GLIBC_2.4' not found (required by mv)
mv: /lib/libc.so.6: version `GLIBC_2.4' not found (required by mv)

+================================================= =============================
| Upgrading glibc-2.3.4-i486-1 package using /var/slapt-get/./slackware/l/glibc-2.5-i486-4.tgz
+================================================= =============================

Pre-installing package glibc-2.5-i486-4...

No such package: /var/log/packages/*-2008-01-10,20:34:23*. Can't remove.

Cannot install /var/slapt-get/./slackware/l/glibc-2.5-i486-4.tgz: package is corrupt (failed 'gzip -l /var/slapt-get/./slackware/l/glibc-2.5-i486-4.tgz')
Package glibc-2.3.4-i486-1 upgraded with new package /var/slapt-get/./slackware/l/glibc-2.5-i486-4.tgz.

Done

root@bigbrother:~# root@bigbrother:~# ls -lach /lib/ | grep libc.
-rwxr-xr-x 1 root root 1.3M 2005-06-05 10:14 libc-2.3.4.so*
lrwxrwxrwx 1 root root 13 2005-06-05 10:14 libc.so.6 -> libc-2.3.4.so*
-rwxr-xr-x 1 root root 187K 2005-06-05 10:14 libcidn-2.3.4.so*
lrwxrwxrwx 1 root root 16 2005-06-05 10:18 libcidn.so.1 -> libcidn-2.3.4.so*
lrwxrwxrwx 1 root root 17 2008-01-10 20:24 libcom_err.so.2 -> libcom_err.so.2.1*
-rwxr-xr-x 1 root root 5.7K 2008-01-10 20:24 libcom_err.so.2.1*
-rwxr-xr-x 1 root root 25K 2005-06-05 10:14 libcrypt-2.3.4.so*
lrwxrwxrwx 1 root root 17 2005-06-05 10:14 libcrypt.so.1 -> libcrypt-2.3.4.so*