We have both liblua and liblua5.3 in $(STAGING_DIR)/usr. But the headers
for liblua5.3 are in (STAGING_DIR)/usr/include/lua5.3. The way things
are now, Asterisk uses the headers from liblua and links against
liblua5.3.
The easiest way out of this is to turn off the lua detection that is
based on version numbers. The next detection looks for a version-less
lua, which works fine.
Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>