Help gnupg2 find libresolv

Fixes #21431.
strategoxt: Moved FTP Server

Closes #21392.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
sdf: depends on pkg-config

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
strategoxt: depends on pkg-config
libCello: 1.0.0 - A library for higher level programming in C