File ClanLib-2.0.1.tgz contain windows binaries:

ClanLib-2.0.1/Tests/Display/SpriteSpeed1/SpriteSpeed1-CL08.exe
ClanLib-2.0.1/Tests/Display/SpriteSpeed1/SpriteSpeed1-CL09.exe
ClanLib-2.0.1/configure.exe

Please remove these binaries from the tarball, it complicates using upstream tarball in Linux distributions. (Maintainer has to check whether source code is available and thus distro has the right to copy/modify/distribute the binaries).