Kaiser, I was able to find out that the library image was corrupted with the following command:

$ readelf –a libbb_api.so.4.0.2

The output of readelf will tell you about the different pieces of the library, and if they are corrupted. Substitute the file name of the library you are using in the command.

Andrew updated the library for me, and I’ve been cruising along just fine ever since.

– Ray

I installed a fresh copy of Ubuntu LTS (downloaded ISO image yesterday from Ubuntu) for testing, so it is ‘factory new’.
Yeah, that linker message was so vague as to be useless (typical).

The only other thing I had to do was to install g++ in the standard manner – $sudo apt install g++.
I listed the details of the compiler config in the forum post.

I deleted everything and extracted the SDK from a new download, and captured the installation sequence below:

dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$ ldconfig -v -n .
.:
libbb_api.so.4 -> libbb_api.so.4.0.2 (changed)
libftd2xx.so -> libftd2xx.so
dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$ ln -sf libbb_api.so.4 libbb_api.so
dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$ sudo cp libbb_api.* /usr/local/lib
[sudo] password for dunn874:

This is the (SDK) library after the install, with libbb_api.so and libbb_api.so.4 as a soft links.

dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$ ls -la
total 14836
drwxr-xr-x 2 dunn874 riocdev 4096 Nov 1 10:49 .
drwxr-xr-x 5 dunn874 riocdev 4096 Oct 18 08:53 ..
lrwxrwxrwx 1 dunn874 riocdev 14 Nov 1 10:49 libbb_api.so -> libbb_api.so.4
lrwxrwxrwx 1 dunn874 riocdev 18 Nov 1 10:49 libbb_api.so.4 -> libbb_api.so.4.0.2
-rw-r–r– 1 dunn874 riocdev 14957792 Oct 17 16:21 libbb_api.so.4.0.2
dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$

This is the /usr/local/lib after the install
NOTE! the soft-link libbb_api.so is NO LONGER A LINK, BUT A COPY OF THE FILE

dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$ ls -la /usr/local/lib
total 43840
drwxr-xr-x 4 root root 4096 Nov 1 10:50 .
drwxr-xr-x 10 root root 4096 Jul 17 06:23 ..
-rw-r–r– 1 root root 14957792 Nov 1 10:50 libbb_api.so
-rw-r–r– 1 root root 14957792 Nov 1 10:50 libbb_api.so.4
-rw-r–r– 1 root root 14957792 Nov 1 10:50 libbb_api.so.4.0.2
drwxrwsr-x 4 root staff 4096 Jul 17 06:46 python2.7
drwxrwsr-x 3 root staff 4096 Jul 17 06:24 python3.6
dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/lib/Ubuntu 18.04$

Build the device_info project:

dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/sample_projects/device_info$ make
g++ -Wall main.cpp -o dev_info -Wl,-rpath /usr/local/lib -lbb_api

/usr/bin/ld: out of memory allocating 30374008975618 bytes after a total of 282624 bytes
collect2: error: ld returned 1 exit status
Makefile:6: recipe for target ‘all’ failed
make: *** [all] Error 1
dunn874@WE31900:~/Projects/signal_hound_sdk/device_apis/bb_series/linux/sample_projects/device_info$

Same problems

Please advise asap, we are on a tight schedule for a demonstration.

– Ray

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