Re: gobject-introspection build failure

[Colin Helliwell <colin helliwell ln-systems com>]

> On 30 March 2017 at 16:09 Thomas Haller <thaller redhat com> wrote:
>
> On Thu, 2017-03-30 at 11:07 +0100, colin helliwell ln-systems com
> wrote:
>
> > I was able to build NM 1.4.2 with G-I enabled, and have now moved up
> > to
> > 1.8/master.
> > But hitting a build failure (cross-compiling, in Yocto):
....
> The python script generate-setting-docs.py uses pygobject to eventually
> load libnm.so.
>
> Seems like the wrong libnm.so is loaded.
>
> Maybe it helps to set "LD_DEBUG=all" to see from where the shared
> library comes?

Ouch - that generates a *lot* of output! (29k lines)
May not be overly helpful to post the whole lot here - I can filter as required (or add as an attachment so 
subscribers can choose!)

But guessing at what might be a pertinent section:


|      15041:
|      15041:   
file=/home/colin/100051-karo/fsl-community-bsp/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/networkmanager/1.8-r0/build/libnm/.libs/libnm.so.0
 [0];  dynamically loaded by /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 [0]
|      15041:
|      15041:   file=libnm.so.0 [0];  dynamically loaded by /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 [0]
|      15041:   find library=libnm.so.0 [0]; searching
|      15041:    search 
path=/home/colin/100051-karo/fsl-community-bsp/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/networkmanager/1.8-r0/build/libnm/.libs
                (LD_LIBRARY_PATH)
|      15041:     trying 
file=/home/colin/100051-karo/fsl-community-bsp/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/networkmanager/1.8-r0/build/libnm/.libs/libnm.so.0
|      15041:    search cache=/etc/ld.so.cache
|      15041:    search 
path=/lib/x86_64-linux-gnu/tls/x86_64:/lib/x86_64-linux-gnu/tls:/lib/x86_64-linux-gnu/x86_64:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu/tls/x86_64:/usr/lib/x86_64-linux-gnu/tls:/usr/lib/x86_64-linux-gnu/x86_64:/usr/lib/x86_64-linux-gnu:/lib/tls/x86_64:/lib/tls:/lib/x86_64:/lib:/usr/lib/tls/x86_64:/usr/lib/tls:/usr/lib/x86_64:/usr/lib
            (system search path)
|      15041:     trying file=/lib/x86_64-linux-gnu/tls/x86_64/libnm.so.0
|      15041:     trying file=/lib/x86_64-linux-gnu/tls/libnm.so.0
|      15041:     trying file=/lib/x86_64-linux-gnu/x86_64/libnm.so.0
|      15041:     trying file=/lib/x86_64-linux-gnu/libnm.so.0
|      15041:     trying file=/usr/lib/x86_64-linux-gnu/tls/x86_64/libnm.so.0
|      15041:     trying file=/usr/lib/x86_64-linux-gnu/tls/libnm.so.0
|      15041:     trying file=/usr/lib/x86_64-linux-gnu/x86_64/libnm.so.0
|      15041:     trying file=/usr/lib/x86_64-linux-gnu/libnm.so.0
|      15041:     trying file=/lib/tls/x86_64/libnm.so.0
|      15041:     trying file=/lib/tls/libnm.so.0
|      15041:     trying file=/lib/x86_64/libnm.so.0
|      15041:     trying file=/lib/libnm.so.0
|      15041:     trying file=/usr/lib/tls/x86_64/libnm.so.0
|      15041:     trying file=/usr/lib/tls/libnm.so.0
|      15041:     trying file=/usr/lib/x86_64/libnm.so.0
|      15041:     trying file=/usr/lib/libnm.so.0
|      15041:
| 
| ** (process:15041): WARNING **: Failed to load shared library 'libnm.so.0' referenced by the typelib: 
libnm.so.0: wrong ELF class: ELFCLASS32
| ../git/libnm/generate-setting-docs.py:217: Warning: cannot retrieve class for invalid (unclassed) type 
'void'

The 'actual' libnm.so.0.1.0 (ARM dynamic lib), together with the symlinks, is in 
/home/colin/100051-karo/fsl-community-bsp/build/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/networkmanager/1.8-r0/build/libnm/.libs