--without-shared-libs: Link Dovecot libraries with --whole-archive flag for binaries. This removes the need for the ugly unused_objects lists for binaries, which were needed to avoid plugins from failing because they were missing some functions. Apparently there's no easy way to use --whole-archive properly with libtool, so there's now a rather ugly cc-wrapper.sh that does it. Also this is done only when GNU ld is deted. Most people are going to use --with-shared-libs though, so I don't think any of this is going to be a real problem.

#!/bin/sh

if echo "$*" | grep -- -ldl > /dev/null; then
  # the binary uses plugins. make sure we include everything from .a libs
  exec @CC@ -Wl,--whole-archive $* -Wl,--no-whole-archive
else
  exec @CC@ $*
fi