how does SCR_URI_OVERRIDES_PACKAGE_ARCH affect building tslib?

["Robert P. J. Day" <rpjday@crashcourse.ca>]

  looking at SRC_URI_OVERRIDES_PACKAGE_ARCH variable, and i notice
first that there is only one usage of it in all of oe-core (tslib),
but i'm confused as to what value it has.

  the ref manual reads:

"By default, the OpenEmbedded build system automatically detects
whether SRC_URI contains files that are machine-specific. If so, the
build system automatically changes PACKAGE_ARCH. Setting this variable
to "0" disables this behavior."

  first, i'm not sure what about the tslib SRC_URI appears to be
machine-specific. also, just for fun, i commented out that line in the
tslib .bb file, and did a global "bb show" to see what difference it
made, and i saw no difference at all. so what exactly is the purpose
of that line in that recipe? what difference should i be able to see
with versus without it? thanks.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================