The problem seems to be an undefined DESTDIR variable. I’m not sure the best way to fix it. Here’s the terminal output:
user@dero:~$ sudo '/home/user/Applications/engram-linux-amd64/Makefile'
/home/user/Applications/engram-linux-amd64/Makefile: 4: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 4: LOCAL: not found
/home/user/Applications/engram-linux-amd64/Makefile: 5: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 5: shell: not found
/home/user/Applications/engram-linux-amd64/Makefile: 5: LOCAL: not found
/home/user/Applications/engram-linux-amd64/Makefile: 6: LOCAL: not found
/home/user/Applications/engram-linux-amd64/Makefile: 6: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 8: Name: not found
/home/user/Applications/engram-linux-amd64/Makefile: 9: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 10: Icon: not found
/home/user/Applications/engram-linux-amd64/Makefile: 12: default:: not found
/home/user/Applications/engram-linux-amd64/Makefile: 21: install:: not found
/home/user/Applications/engram-linux-amd64/Makefile: 22: Name: not found
/home/user/Applications/engram-linux-amd64/Makefile: 22: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 22: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 22: Name: not found
install: cannot stat 'usr/local/share/applications/.desktop': No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 23: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 23: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 23: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 23: Exec: not found
install: cannot stat 'usr/local/bin/': No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 24: Icon: not found
/home/user/Applications/engram-linux-amd64/Makefile: 24: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 24: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 24: Icon: not found
install: target '/share/pixmaps/' is not a directory: No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 25: uninstall:: not found
/home/user/Applications/engram-linux-amd64/Makefile: 26: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 26: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 26: Name: not found
/home/user/Applications/engram-linux-amd64/Makefile: 26: -rm: not found
/home/user/Applications/engram-linux-amd64/Makefile: 27: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 27: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 27: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 27: -rm: not found
/home/user/Applications/engram-linux-amd64/Makefile: 28: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 28: PREFIX: not found
/home/user/Applications/engram-linux-amd64/Makefile: 28: Icon: not found
/home/user/Applications/engram-linux-amd64/Makefile: 28: -rm: not found
/home/user/Applications/engram-linux-amd64/Makefile: 30: user-install:: not found
/home/user/Applications/engram-linux-amd64/Makefile: 31: Name: not found
/home/user/Applications/engram-linux-amd64/Makefile: 31: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 31: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 31: Name: not found
install: cannot stat 'usr/local/share/applications/.desktop': No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 32: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 32: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 32: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 32: Exec: not found
install: target '/.local/bin/' is not a directory: No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 33: Icon: not found
/home/user/Applications/engram-linux-amd64/Makefile: 33: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 33: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 33: Icon: not found
install: target '/.local/share/icons/' is not a directory: No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 34: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 34: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 34: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 34: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 34: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 34: Name: not found
sed: can't read /.local/share/applications/.desktop: No such file or directory
/home/user/Applications/engram-linux-amd64/Makefile: 36: user-uninstall:: not found
/home/user/Applications/engram-linux-amd64/Makefile: 37: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 37: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 37: Name: not found
/home/user/Applications/engram-linux-amd64/Makefile: 37: -rm: not found
/home/user/Applications/engram-linux-amd64/Makefile: 38: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 38: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 38: Exec: not found
/home/user/Applications/engram-linux-amd64/Makefile: 38: -rm: not found
/home/user/Applications/engram-linux-amd64/Makefile: 39: DESTDIR: not found
/home/user/Applications/engram-linux-amd64/Makefile: 39: HOME: not found
/home/user/Applications/engram-linux-amd64/Makefile: 39: Icon: not found
/home/user/Applications/engram-linux-amd64/Makefile: 39: -rm: not found
user@dero:~$