This was corrected with the 7.16.2-6ubuntu3 upload of curl. And then
backed out with the next upload, but that's another story.
** Changed in: curl (Ubuntu)
Status: New => Fix Released
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libcurl3-gnutls gutsy upgrade failed
https://bugs.launchpad.net/bugs/123826
You received this bug not
I can't read italian, but I think the same thing happened to me just now.
Using update-manager, the error message was:
E: /var/cache/apt/archives/libcurl3_7.16.2-6ubuntu2_i386.deb: trying to
overwrite `/usr/lib/libcurl.so.4.0.0', which is also in package libcurl4
E: /var/cache/apt/archives/libcur
