Install libxmuu-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libxmuu-dev
Description:
X11 miscellaneous micro-utility library (development headers)
libXmuu provides a set of miscellaneous utility convenience functions for X libraries to use. It is a lighter version of libXmu that does not depend on libXt or libXext; for more information on libXmu, see libxmu6. . This package contains the development headers for the library found in libxmuu1. Non-developers likely have little use for this package. . More information about X.Org can be found at:
Version: 2:1.1.2-2
Section: libdevel