Removed a number of commented sections
Made a few sample types explicitly sized
Removed debugging statements

This patch adds a missing case to the tests wscript, to handle the QNX
platform.  It also adds code to the setup for the various directory
macros, to handle the case when the build is taking place on Windows,
to ensure that the directory paths still come across in POSIX format.

Change-Id: If8054284d390e40c97c8c585af2851e94275aad8

Adds a JACK internal client to interact with QNX io-audio system.

The expression tries to take the absolute value of an unsigned
(jack_nframes_t) which is the difference between two unsigned.

Cast the unsigned to signed before taking the difference so a
cur_buffer_size larger than delta_time actually produces a meaningful
result.

The program is C++ but includes C headers and uses extern "C"
clauses around the ExternalMetro class.

JACK2 added this function first, but the int return has been always wrong.
When JACK1 added JackPortRenameCallback it used the proper return.

Now that JACK1 supports port renames, devs will start to use it.
(previously it didn't work properly because of the missing jack_client_t* arg)

Some code might be broken because of this, but it's a very simple change,
and existing code would have been broken when changing JACK1 to JACK2.

Finally, JACK2 code never uses the int return value of this callback.
So there's no real reason to NOT change this.

jackdbus needs explicit index because device reservation code
is shared with jackd and waf cannot autodetect this.

Automatically upgrading to python3 syntax, where possible.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4684 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4670 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4610 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4548 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4489 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4488 0c269be4-1314-0410-8aa9-9f06e86f4224

gcc (Gentoo 4.4.5 p1.2, pie-0.4.5) 4.4.5

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@4363 0c269be4-1314-0410-8aa9-9f06e86f4224

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