2014-05-10 18:58 skrev Khem Raj:
On Sat, May 10, 2014 at 1:05 AM, Petter Mabäcker <pet...@technux.se>
wrote:
+FILESEXTRAPATHS_prepend := "${THISDIR}/systemtap:"
would something like
FILESEXTRAPATHS =. "${FILE_DIRNAME}/systemtap:"
avoid the prepend and immediate evaluation
I guess someone with deep bitbake knowledge can answer this better. But
as far as I understand, you should always use immediate evaluation when
using THISDIR, to be extra safe. Not sure if it's more safe to use
FILE_DIRNAME if you want to avoid immediate expanding when using
FILESEXTRAPATHS?
The bitbake documentations says:
"The operators "_append" and "_prepend" differ from the operators ".="
and "=." in that they are deferred until after parsing completes rather
than being immediately applied."
Not sure if above means that "=." will also immediately expand
variables or not?
Personally I have always used FILESEXTRAPATHS_prepend :=
"${THISDIR}/<somename>:" like the yocto documentation recommends. But
sure if you can avoid immediate expanding in FILESEXTRPATHS, that would
mean a tiny optimization. In that case perhaps the documentation should
be updated as well. Looking in meta-layer both methods seems to be used.
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