checking for ORBIT_IDL... configure: error: Package requirements (	libIDL-2.0 >= 0.8.2 	glib-2.0 >= 2.8.0 	gobject-2.0 >= 2.8.0 	gmodule-2.0 >= 2.8.0) were not met:

No package 'libIDL-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables ORBIT_IDL_CFLAGS
and ORBIT_IDL_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.