Ah, sorry, I said this on the wrong bug:

I notice your branch removes an extern function. Please don't do that (it would break osso-mission-control on Maemo unless this function is unused, and I happen to know that mcd_debug_set_level() is called by osso-mission-control).

Sorry, didn't realize there were external consumers.

I returned a cleaner version of mcd_debug_set_level() to my branch.

Bah. I'm sure I reviewed this already, but the combination of Bugzilla and unstable 3G on a train ate it.

Basically, the problem is that osso-mission-control uses mcd-debug.h, and because a lot of that header is inline, it hard-codes the version that was current at the time it was compiled. Also, I don't want to expand MC's API/ABI - I'm trying to stop src/ having any public API at all (in favour of just having OMC use libmission-control-plugins) but we're not there yet.

So, I think we should introduce a debug-internal.h, which defines McdDebugFlags, _mcd_debug_flag_is_set (prefix an underscore to make it internal to MC), and your version of DEBUG() (only if DEBUG_FLAG is defined). All MC files should include debug-internal.h instead of mcd-debug.h.

mcd-debug.h should keep defining DEBUG() too (to support OMC), but only if DEBUG_FLAG is *not* defined.

mcd-debug.h should continue to define _mcd_debug_get_level for source compatibility.

> -gint mcd_debug_level = 0;

This must continue to exist; otherwise, OMC will abort on startup with a linker error. (Don't remove extern symbols.)

-------------------

Review comments that don't relate to the general approach:

> +                       mcp_set_debug ((flags != 0));

This should check MCD_DEBUG_PLUGIN - mcp is the plugins library

> + #define DEBUGGING mcd_debug_flag_is_set (DEBUG_FLAG)

Parenthesize the definition, since it's an expression: #define DEBUGGING (_mcd_debug_flag_is_set (DEBUG_FLAG))

>  {
> -    mcd_debug_level = level;
> +               if (level == 1)
> +               {
> +                flags = ~MCD_DEBUG_TREES;

What's going on with the indentation? 4-space indentation for existing files, Telepathy style (GNUish 2+2 space indentation) for entirely new files, and no tabs anywhere, please.

Please reinstate the patch keyword when this is ready for review again.

Did the changes you suggested.
Hope I found all the whitespace issues.

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