On OpenBSD the pkg-config names takes a minimalist format. No dash, and
no separator between the major and minor version number. Build script is
thus adapted to have also these in their set of alt_probes.
Signed-off-by: Alex Orlenko <zxteam@protonmail.com>
On FreeBSD the pkg-config names takes the format with a dash, rather
than without (e.g. lua-5.4, not lua5.4). Thus adapt build script to
iterate over an array of alt_probes until finding a match.
Signed-off-by: Alex Orlenko <zxteam@protonmail.com>