build: fix disabling telepathy backend
build: fix disabling telepathy backend

fixes 855803a62b3a89ddb3c6abd3fa316d80cd036baf

Signed-off-by: Marc-Antoine Perennou <07f76cf0511c79b361712839686f3cee8c75791c@Perennou.com>

renatofilho/folks,GNOME/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks2,GNOME/folks,renatofilho/folks,GNOME/folks,renatofilho/folks2,renatofilho/folks2,renatofilho/folks,renatofilho/folks2,pwithnall/folks,pwithnall/folks