An example project to use Juce with Bela. Currently requires this JUCE branch.

The .jucer file comes with all the important flags already set. Here is a breakdown: Exporters -> LinuxMakefile

• Extra preprocessor definitions:

__COBALT__
__COBALT_WRAP__

• Extra compiler flags:

-mtune=cortex-a8
-mfloat-abi=hard
-mfpu=neon
-ftree-vectorize
-I/root/Bela/include -I/root/Bela/include/legacy -I/root/Bela/ -I/usr/xenomai/include/cobalt -I/usr/xenomai/include

• Extra linker flags:

-L/root/Bela/lib  -L/usr/xenomai/lib

• External libraries to link:

bela
belaextra
cobalt
modechk

In the juce_graphics, juce_gui_basics, and juce_gui_extra modules (which are for some obscure reason still required) disable most of the disableable voices (not all of them, as some will cause trouble!). Also disable curl in juce_core.

Prerequisites:

Not sure exactly what I had to install. Probably at least:

libfreetype6-dev
libxext6-dev
libxinerama1-dev

Usage:

Get a copy of JUCE, open the .jucer file in your Projucer, set the appropriate paths for the LinuxMakefile export, and save. Copy all the relevant files to the board, cd to Builds/LinuxMakefile and run make CONFIG=Release.

Further notes:

If your Juce app requires a display, then it will be probably fail at runtime. You may find it useful to use a virtual X11 server, such as xvfb, although ideally someone that doesn't perform any computation at all would probably be a better option.

The native build process is painfully slow. Using distcc helps making that faster, but still the linking stage is fairly slow. When building with distcc I recommend:

CXX=distcc-clang++ make V=1 TARGET_ARCH=-march=armv7-a CONFIG=Release