Change-Id: I9cdcd64ccca978b65a6962a9c6c6587c1e435967

Change-Id: I9447ca24557add2c9cc429d33775358b993e5814

This revert part of cb2d3f22.

Configure script generation and make distcheck work again.
Remove deprecated autoconf macro, update obsolete one.

An infinite loop was possible on insertion of an event in the processing
queue in case the event len was higher than the 'on disk threshold' value.
Closes #385.

Thanks Friedrich Delgado <delgado@pre-sense.de> for reporting the problem,
and the useful debug information!

Fix prelude-string warning in case of a NULL IDMEF impact description: this
is an optional element. Closes #376.

Always create a CorrelationAlert name element, since the associated
prelude_string_t can never be NULL.

Code simplification for Action element creation.

Recent versions of GnuTLS (>= 2.8.x) do not provide libgnutls-config script
anymore.
Use pkg-config first to check for GnuTLS, and fall back to old method
if not found to keep compatibility with previous versions.

Signed-off-by: Pierre Chifflier <chifflier@inl.fr>

Since we now ship using libtool2, we need a libprelude version that
provide the libtool version selection hack. This is available from
libprelude 0.9.21.3.

Since GnuLib now supply replacement for standard header that are
not available on the system, it is cleaner to include the necessary
header directly in each source code file.

git-svn-id: file:///home/yoann/SVN/prelude-manager/trunk@11165 09c5ec92-17d4-0310-903a-819935f44dba