[Ardour-Dev] building A3 on OSX; patches

[Robin Gareus]

Hi *,

How do you guys build the universal OSX binary of Ardour3?


Obviously dependencies like glib/gtk are the time-consuming part; but
except for glib/glibconfig.h all libs are multi-arch.

I managed to compile ardour3 PPC/i386/x86_64 (with videotimeline) but
without core-audio / AU effect support. Works fine, too! It required a
few minor changes to ardour on OSX 10.5, i686-apple-darwin10-gcc-4.2.1.

 * replace all <glib/FILENAME.h> includes with <glib.h> for glib-2.31.2
   #error "Only <glib.h> can be included directly."
 * work around "looses precision" and implicit typecast errors:
   size_t/SInt32 for OSX and void*/int for 32/64bit
 * fix the wscript's --universal parameters

The 2nd patch fixes compilation of the FPU code for universal builds.
and last but not least #3 adds a wscript option to disable AU-plugins
because..

The AU-plugin code fails in two places:
  * audio_unit.cc: undefined symbols (was not declared in this scope)
     GetCurrentEventLoop() and GetCFRunLoopFromEventLoop()
  * au_pluginui.mm: error: '_preset_box' was not declared in this scope
    furthermore it is not 64bit compatible because it uses Carbon :(

OK, so 64bit is off the table; but where does _preset_box and
GetCurrentEventLoop() come from?  Any hints?

thanks,
robin
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