development updated (67c5a06a -> 2048edd2)

ildumi pushed a change to branch development.

    from 67c5a06a libtoolize: Don't use uninitialized variable.
     new 17fb0109 Support C++17 compilers in the C++ tests.
     new 2048edd2 Document how to debug failing or skipped tests.


Summary of changes:
 HACKING             |  6 ++++++
 tests/exceptions.at | 42 +++++++++++++++++++++++++++++-------------
 2 files changed, 35 insertions(+), 13 deletions(-)