On my system upgrading to libtool 2.2 causes the following builds to fail during the autoconf/automake/configure process:
The actual error gotten varies by package, but all appear to be libtool related. I can attach logs if necessary. Note that these packages build fine with libtool 1.5.26. I really don't know why mono failed. The actual error message didn't link to anything libtool-related, however it builds successfully with libtool 1.5.26.
Since there's no universal fix, unfortunately we need one bug per package if there's not already one... :/ Make them block Bug 212763.
*** This bug has been marked as a duplicate of bug 212763 ***