Then building version 3 from cmake
/Users/artem/buildlokotko/libbitcoin-system/src/math/elliptic_curve.cpp:24:10: fatal error:
‘secp256k1_recovery.h’ file not found
#include <secp256k1_recovery.h>
^~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [CMakeFiles/bitcoin-system.dir/Users/artem/buildlokotko/libbitcoin-system/src/math/elliptic_curve.cpp.o] Error 1
make[1]: *** [CMakeFiles/bitcoin-system.dir/all] Error 2
make: *** [all] Error 2