The Debian issue has been closed by Ondřej Surý on 2011-04-24.Status: Fixed
See Debian bug #623837; in wheezy, there is no problem with Botan in monotone configure.
My Debian Maintainer skills are definitely rusty :( First, this should have been reported on the Debian bug tracker. Second, it's a bug in Botan packaging; libbotan1.8-dev should Depend on libgmp-dev. On the other hand, 'reportbug' fails when I try to report a bug against libbotan1.8-dev, and http://packages.debian.org/sid/libbotan1.8 says it's a 'debports' package, which means it's not an 'official' Debian package? I'm confused.
This is on Debian testing.
Steps to reproduce the problem: 1. uninstall libgmp-dev 2. install all packages listed in org.debian.monotone/control Build-Depends 3. cd net.venge.monotone 4. ./configure Expected result: successful configure Actual result: failed; config.log indicates 'can't find -lgmp' Solution; add -libgmp-dev to org.debian.monotone/control Build-Depends