Re: Cross compile gpsd-3.20.1~dev for arm with buildroot

[Gary E. Miller]

Yo Florian!

On Fri, 5 Jun 2020 16:39:37 +0200
Florian Kiera <florian.kiera@logicway.de> wrote:

> I am trying to update the gpsd version for our buildroot and keep 
> running into an error:

3.18 is too old to support.

You have reported this as before.  Exact same problem as before:

    unrecognized option '-Wl,-Bsymbolic'

As before, that is not in gpsd:
    $ fgrep Bsymbol * -r
    $

It is coming from somewhere else in your system, not from gpsd.

> I already know buildroot can be tricky sometimes. But how it comes
> that scons/gpsd is using the arm-buildroot-linux-uclibcgnueabihf-ld
> to compile the libgps.so while on x86_64 it uses the g++?

You specified the CC and LD yourself, not scons/gpsd:

CC="/home/florian/Desktop/buildroot-2019.02.8.2/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-gcc"
 
GCC="/home/florian/Desktop/buildroot-2019.02.8.2/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-gcc"
 
CPP="/home/florian/Desktop/buildroot-2019.02.8.2/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-cpp"
 
CXX="/home/florian/Desktop/buildroot-2019.02.8.2/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-g++"
 
LD="/home/florian/Desktop/buildroot-2019.02.8.2/output/host/bin/arm-buildroot-linux-uclibcgnueabihf-ld"
 

I see nowhere in your bulid log the ld is used to compile.



> It also
> used the g++ when compiling with the older version 3.18 (line 131 of 
> compile-3.18_success.txt).

Yes, g++ is used to compile C++ code.  Nothing odd there.

> uclibcgnueabihf-ld isn't used a single time in the 3.18 cross 
> compilation,

Because you did not tell it to use that.  See above.

> why so in the 3.20 cross compilation? Its neither used
> in the compilation for x86_64.

Well, duh.  You do not use arm ld to link x86 code.

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

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