[BUG] unstable requires libshout version not available in APT on Raspberry PI (buster 10)

[rough316]

TLDR: Newer version of libshout needed with unstable, had to build from source

Describe your environment

• RTLSDR-Airband version you are using (stable release number or branch/commit): unstable
• make options used to build the program: cmake ../ -DPLATFORM=rpiv2 -DNFM=ON
• Hardware platform (eg. x86_64, Raspberry Pi v4): Raspberry pi 3B
• Operating system name and version: Raspbian / Buster 10

What happened?

Sep 24 11:46:03 raspberrypi rtl_airband[25004]: /usr/local/bin/rtl_airband: symbol lookup error: /usr/local/bin/rtl_airband: undefined symbol: shout_set_content_format

What you expected to happen?

No error

Steps to Reproduce

Build unstable on pi 3B / buster10

Additional context

Here is my OS version:

PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"

[charlie-foxtrot]

Confirmed libshout3-dev version 2.4.1-2 is the latest available via apt for Raspbian GNU/Linux 10 (buster). Requirement was set as v2.4.3 or later as part of #382, will looks to support at least 2.4.1 or later

[charlie-foxtrot]

@rough316 can you try #422?