error while loading shared libraries: libpng16.so.16

[hb9eue]

Hi

Not sure if I found the correct repository.

I was notified, that I required to update to version >= 0.3 to keep my receiver working because of a protocol change in OGN Network.
So I did upgrade from 2.9 to 3.2

Running Linux pi3 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux

Libpng16 is present:

/usr/lib/aarch64-linux-gnu/libpng16.so
/usr/lib/aarch64-linux-gnu/libpng16.a
/usr/lib/aarch64-linux-gnu/libpng16.so.16.37.0
/usr/lib/aarch64-linux-gnu/libpng16.so.16

But still, both binaries fail to start:

/root/rtlsdr-ogn/ogn-rf Neuenhof.conf

/root/rtlsdr-ogn/ogn-rf: error while loading shared libraries: libpng16.so.16: cannot open shared object file: No such file or directory

/root/rtlsdr-ogn/ogn-decode Neuenhof.conf

/root/rtlsdr-ogn/ogn-decode: error while loading shared libraries: libpng16.so.16: cannot open shared object file: No such file or directory

Any help appriciated.

-Benoit-

[hb9eue]

Ok I guess I solved it...

/root/rtlsdr-ogn/ogn-decode: ELF 32-bit LSB executable, ARM

The binary is compiled for 32-bit armhf, not for aarch64 which is used on raspbery-pi 3 and newer.

So the library has to bee installed for armhf:

apt install libpng16-16:armhf