Add ccache and python-pyelftools to prerequisites

[jenswi-linaro]

Adds the packages ccache and python-pyelftools to prerequisites.

Signed-off-by: Jens Wiklander jens.wiklander@linaro.org

[jforissier]

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

Is ccache a strong prerequisite? Technically, it should be optional, but it's so good that we probably want to have it in the list anyways ;-)

Regarding pythong-pyelftools, maybe state where it is used. I guess it's in commit ("core: embed ldelf into tee core") from PR https://github.com/OP-TEE/optee_os/pull/3036?

[jbech-linaro]

Is ccache a strong prerequisite? Technically, it should be optional, but it's so good that we probably want to have it in the list anyways ;-)

+1 for having ccache in the list. It's a bit like order a pizza, cheese is optional, but it's always included by default ;-)

[jenswi-linaro]

"core: embed ldelf into tee core" isn't merged yet, should we hold this off until it is?

[jbech-linaro]

"core: embed ldelf into tee core" isn't merged yet, should we hold this off until it is?

Yes, I think so.

[jbech-linaro]

@jenswi-linaro , since we've gotten the actual patches for the stuff merged, time to merge this. Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

[jenswi-linaro]

Tags applied, added a note on the python-pyelftools prerequisite.