Eile_Kerning [1] filed an orphan request for libgksu [2]: Maintainer will not correct a part of the PKGBUILD that causes the package to fail to build. There is a solution to the comments, however, as the maintainer is MIA, someone needs to fix this.
[1] https://aur.archlinux.org/account/Eile_Kerning/ [2] https://aur.archlinux.org/pkgbase/libgksu/
