Running:

sudo ./cerbero-uninstalled -c config/osx-x86-64.cbc package gstreamer-1.0

The build hangs at the gobject-introspection compile step and I don't see any compilation going on in my process list.

I built the step dry run and tried to run (as root, again):

cd /Users/me/cerbero/sources/darwin_x86_64/gobject-introspection-1.46.0 && make -j4 && cd /Users/me/cerbero1

And I get the following output:

cd /Users/me/cerbero/sources/darwin_x86_64/gobject-introspection-1.46.0 && make -j4 && cd /Users/me/cerbero1
/Applications/Xcode-7.1.1.app/Contents/Developer/usr/bin/make  all-recursive
Making all in .
make[2]: *** No rule to make target `/Users/me/cerbero/build-tools/lib/glib-2.0/include/x86_64/glibconfig.h', needed by `GLib-2.0.gir'.  Stop.
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

Is this ok to do? Or are there environment variables I might be missing when running the step manually like this?
Looks like there are two bugs? The build fails and it doesn't show to the user?

The only change i have to my system that you might case about was to config/osx-x86-64.cbc:

prefix='/Library/Frameworks/GStreamer-compiled2.framework/Versions/1.0'