Currently running Debian Lenny (5.0.9). I added the following test repos to install a specific package;
deb http://ftp.debian.org/debian/ testing main contrib
deb-src http://ftp.debian.org/debian/ testing main contrib
However, now when I go to install another package (libc6-dev), this is the result;
The following packages are BROKEN:
libc6-dev
The following NEW packages will be installed:
binutils{a} cpp{a} cpp-4.3{a} gcc{a} gcc-4.3{a} libgmp3c2{a} libgomp1{a}
libmpfr1ldbl{a} libtool linux-libc-dev{a}
The following packages are RECOMMENDED but will NOT be installed:
libltdl3-dev
0 packages upgraded, 11 newly installed, 0 to remove and 1 not upgraded.
Need to get 13.6MB of archives. After unpacking 39.7MB will be used.
The following packages have unmet dependencies:
libc6-dev: Depends: libc6 (= 2.7-18lenny7) but 2.13-21 is installed.
The following actions will resolve these dependencies:
Keep the following packages at their current version:
libc6-dev [Not Installed]
libtool [Not Installed]
Score is -9872
How can I get this fixed?