cmake: install mavlink headers in correct dir

[JonasVautherin]

Taken from 0c8e236, as it feels useful to merge it ASAP.

[Katawann]

Looks good to me. With this modification, I succeed to build an example for armv7 target platform

However, I have an error when trying to run the example but not sure if it's related. Maybe is the way I generated the deb package:

error while loading shared libraries: libmavsdk.so.1: cannot open shared object file: No such file or directory

[JonasVautherin]

However, I have an error when trying to run the example but not sure if it's related.

Hmm feels unrelated to me. Maybe worth opening a separate issue for that 👍

[julianoes]

Thanks for fixing this. Do we need another patch release for it?

[Katawann]

I work with a deb package build locally on my side it's all good, but if others try to work with the deb provided on github it won't work

[Katawann]

@julianoes Would it be possible to do a patch release ? Or do you have a plan to integrate this correction in v1.5.0 and when could we except to be released ?

[julianoes]

Thanks for the note @Katawann. Here comes a patch for v1.4: #1911.

[julianoes]

I have the feeling this probably is not required for v1.4. It seems to be broken in v1.4.7. I'll revert it.

The changes in main will eventually be released as v2.

[Katawann]

Arf too bad. I'll wait for new release to test the installation then. Thank you for your help anyway !

[JonasVautherin]

But it works in main, doesn't it?

[Katawann]

I need to test again because I need to build the package to include it in my docker. I come back to you when I found some time to test it

[JonasVautherin]

Got it! Let us know if you find a patch, would be helpful 😊

[Katawann]

I just build debian package with main branch but it still fail with the same error:

/usr/include/mavsdk/plugins/mavlink_passthrough/mavlink_include.h:3:10: fatal error: mavlink/v2.0/common/mavlink.h: No such file or directory
#include "mavlink/v2.0/common/mavlink.h"

Now let's found a fix which does not break installation for others...

[julianoes]

Ok, so takeaway: main is broken, release should (again be fine) as it was.