Error installing fakexrandr on Raspberry Pi 4 + Ubuntu

[schubackindustries]

Following their install steps, after installing some dependencies, I get the following error:

ubuntu@ubuntu:~/Downloads/fakexrandr-master$ sudo make
./configure
XRandR version is 1.5.2
The path to the real XRandR library is /lib/arm-linux-gnueabihf/libXrandr.so.2

ERROR: Failed to find a suitable directory for the fakeXrandr library

You must place the library into the library search path, in a directory preceeding
/lib/arm-linux-gnueabihf. In your system, this leaves the following candidates:

None of these contains `local', therefore I won't autoconfigure the installation to one
of these directories. Either add a high-priority directory in /usr/local using the ldconfig
mechanism (See /etc/ld.so.conf.d/ on most systems) or manually create config.h.

make: *** [Makefile:7: config.h] Error 1

Any ideas how I can overcome this?
Looking forward to using this library. Thanks!