/usr/lib/pkgconfig/tao-freeglut-2.4.pc is in libtaoframework-freeglut-cil-dev 2.1.svn20090801-14.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
Name: Tao.FreeGlut
Description: FreeGlut portion of the Tao framework
Version: 2.4.0.2
Requires: tao-opengl-3.0
Libs: -r:${libdir}/cli/Tao.FreeGlut-2.4/Tao.FreeGlut.dll
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