[Buildroot] [autobuild.buildroot.net] Build results for 2014-01-08

[Yann E. MORIN]

On 2014-01-09 08:30 +0100, Thomas Petazzoni spake thusly:
[--SNIP--]
> Detail of failures
[--SNIP--]
>        arm |                     ola-0.8.32 | NOK | http://autobuild.buildroot.net/results/40a5dde3b553e98c05a7f52d1c1ff7a230686c8b/
>     x86_64 |                     ola-0.8.32 | NOK | http://autobuild.buildroot.net/results/eb94659357e0dc68efd45aaa9e9fa03ee286f533/

OK, so I've digged a bit into that ola build failure.

What happens is that ola runs the host-python to check if it can
'import' the google.protobuf module.

Of course, this fails since google.protobuf is installed in target/ and
not in host/ (and we do not explicitly install a host-variant).

So, this test is inherently flawed for cross-compilation.

There is a very simple trick^Whack we can use to fix this issue, either:
  - remove the test entirely, since we enforce the dependency from the
    Config.in an ola.mk, and thus we know google.protobuf will be
    present
  - install a host-google-protobuf as well, so our host Python finds it.

I've tested the first solution, and it builds fine. Not runtime-tested,
since I don't have any OLP hardware.

I'll shortly send a patch with this first solution. If any interested in
this package could test and report sucess/failure, that be great! TIA! ;-)

Regards,
Yann E. MORIN.

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