Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
gtksourceviewmm is a C++ wrapper for the gtksourceview widget library. It offers
all the power of gtksourceview with an interface familiar to C++ developers,
including users of the gtkmm library.