apt-get update apt-get -f install apt-get install libreadline4-dev
that should update the package.
Let's try:
[~] LC_ALL=C sudo apt-get update Hit http://ftp.de.debian.org testing/main Packages Hit http://ftp.de.debian.org testing/main Release Hit http://ftp.de.debian.org testing/contrib Packages Hit http://security.debian.org testing/updates/main Packages Hit http://security.debian.org testing/updates/main Release Hit http://security.debian.org testing/updates/contrib Packages Hit http://security.debian.org testing/updates/contrib Release Hit http://security.debian.org testing/updates/non-free Packages Hit http://security.debian.org testing/updates/non-free Release Hit http://ftp.de.debian.org testing/contrib Release Hit http://ftp.de.debian.org testing/non-free Packages Hit http://ftp.de.debian.org testing/non-free Release Hit http://ftp.de.debian.org testing/non-US/main Packages Hit http://ftp.de.debian.org testing/non-US/main Release Hit http://ftp.de.debian.org testing/non-US/contrib Packages Hit http://ftp.de.debian.org testing/non-US/contrib Release Hit http://ftp.de.debian.org testing/non-US/non-free Packages Hit http://ftp.de.debian.org testing/non-US/non-free Release Hit http://ftp.de.debian.org testing/main Sources Hit http://ftp.de.debian.org testing/main Release Hit http://ftp.de.debian.org testing/contrib Sources Hit http://ftp.de.debian.org testing/contrib Release Hit http://ftp.de.debian.org testing/non-free Sources Hit http://ftp.de.debian.org testing/non-free Release Hit http://ftp.de.debian.org testing/non-US/main Sources Hit http://ftp.de.debian.org testing/non-US/main Release Hit http://ftp.de.debian.org testing/non-US/contrib Sources Hit http://ftp.de.debian.org testing/non-US/contrib Release Hit http://ftp.de.debian.org testing/non-US/non-free Sources Hit http://ftp.de.debian.org testing/non-US/non-free Release Reading Package Lists... Done
[~] LC_ALL=C sudo apt-get install -f Reading Package Lists... Done Building Dependency Tree... Done 0 upgraded, 0 newly installed, 0 to remove and 8 not upgraded.
[~] LC_ALL=C sudo apt-get install libreadline4-dev Reading Package Lists... Done Building Dependency Tree... Done 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.
Since you only requested a single operation it is extremely likely that the package is simply not installable and a bug report against that package should be filed. The following information may help to resolve the situation:
The following packages have unmet dependencies:
libreadline4-dev: Depends: libreadline4 (= 4.3-11) but 4.3-15 is to be installed
E: Broken packages
Best regards, -- Bartlomiej Swiercz
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