fix using qi_add_optional_package with a file defining some macros
fix using qi_add_optional_package with a file defining some macros

Change-Id: I5f44725560a8e7a31f7134a1918a9d5e224d04b4
Reviewed-on: http://gerrit.aldebaran.lan:8080/12912
Tested-by: gerrit
Reviewed-by: dmerejkowsky <1e4b13000fa8777df4cefd2fd8215187e3deb062@aldebaran-robotics.com>
Tested-by: dmerejkowsky <1e4b13000fa8777df4cefd2fd8215187e3deb062@aldebaran-robotics.com>

aldebaran/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,dmerejkowsky/qibuild,aldebaran/qibuild