Do not remove generated doc files on clean
Bump version to 2.0
Add test for libsupc++ NetBSD 9.2 ships with a libsupc++ that is not position independent and cannot therefore be used in a position independent shared library.
This form allows you to request diffs between any two revisions of this file. For each of the two "sides" of the diff, select a symbolic revision name using the selection box, or choose 'Use Text Field' and enter a numeric revision.