No functionnal change

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This fixes issues on X.6 and X.7 when compiled with SDK10.5
The configure would fail to see -crt10.6 library and die on poll()
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Both functions remain broken regardless.
Reported-by: Yann Le Hir <yann.lehir@gmail.com>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This reverts commit b590a13f.

Should close #5571

If we don't build pkg-config (because a previous installation exists
somewhere else), autoconf won't find PKG_* m4 macros and fail to
run on packages using them (if they don't ship the macros either)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This saves a whole lot of float conversion and simplifies the code.

Only 1 second interval has ever been used.

One last full rebuild for this!

The implementation was slow/inefficient. This is really silly for
_performance_ counters. And contrary to the other statistics, nothing
actually reads them, except for debug logs.

If you really want debug-only performance timers, use this:

    mtime_t start, end;

    start = mdate();
    compute_decimals_of_Pi(100);
    end = mdate();
    msg_Dbg(obj, "spent %"PRIu64" us computing", end - start);

So that the user notices it when it doesn't work
Ref #5569
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Atoms mvex, mehd, trex and sdtp are found at least in PIFF (isml) files.
This a first step towards Smooth Streaming support in VLC.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

And reorder alphabetically, so such mistakes don't happen again

Do not leak -lncursesw in LIBS

only error out if asked with --enable-skins2

split out open box function