ubuntu5.10上装不上gcc了

ldy6

apt-get install gcc-3.3 cpp-3.3 gcc-3.3-base
Reading package lists... Done
Building dependency tree... Done
gcc-3.3-base is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  cpp-3.3: Depends: gcc-3.3-base (< 1:3.3.6) but 1:3.3.6-7 is to be installed
E: Broken packages
root@ldy:~ # apt-get install gcc-3.3 cpp-3.3 gcc-3.3-base
Reading package lists... Done
Building dependency tree... Done
gcc-3.3-base is already the newest version.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  cpp-3.3: Depends: gcc-3.3-base (< 1:3.3.6) but 1:3.3.6-7 is to be installed
E: Broken packages

ldy6

maybe this problem is caused by the source i used.
i have installed gcc-3.4 successfully.