Frediano Ziglio authored Aug 12, 2021 and Jakub Jelen committed Aug 12, 2021

Due to the way Autoconf works you cannot reuse PKG_CHECK_MODULES
for the same library so the compilation failed on some systems.
Check using just code and defines instead of using configuration
software.
Also avoids macros to avoid side effects.

Signed-off-by: Frediano Ziglio <freddy77@gmail.com>