make command fails: fatal error: 'libethashseal/GenesisInfo.h' file not found

[maxcct]

make command fails.

Expected behavior

make completes successfully.

Actual behavior

Making all in src
  CXX      qtumd-bitcoind.o
In file included from bitcoind.cpp:10:
./chainparams.h:13:10: fatal error: 'libethashseal/GenesisInfo.h' file not found
#include <libethashseal/GenesisInfo.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
make[2]: *** [qtumd-bitcoind.o] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all-recursive] Error 1

To reproduce

I followed the steps to build on MacOS. Dependencies all installed successfully, and ./autogen.sh and ./configure executed successfully.

System information

  Model Name:	MacBook Pro
  Model Identifier:	MacBookPro14,2
  Processor Name:	Intel Core i7
  Processor Speed:	3.5 GHz
  Number of Processors:	1
  Total Number of Cores:	2
  L2 Cache (per Core):	256 KB
  L3 Cache:	4 MB
  Memory:	16 GB
  Boot ROM Version:	MBP142.0160.B02
  SMC Version (system):	2.44f1

[qtum-neil]

Try cloning with --recursive: git clone --recursive https://github.com/qtumproject/qtum.git