libxmuu-dev - 2:1.1.3-3+b2 main

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.
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This package contains the development headers for the library found in
libxmuu1. Non-developers likely have little use for this package.
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More information about X.Org can be found at:

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This module can be found at
git://anongit.freedesktop.org/git/xorg/lib/libXmu