Cebtenzzre [1] filed a deletion request for libsigc++-patched [2]: This package has been here long enough that I don't remember why it exists. The commit history is a mess and all it provides is a single patch from an unreleased version.
[1] https://aur.archlinux.org/account/Cebtenzzre/ [2] https://aur.archlinux.org/pkgbase/libsigc++-patched/
