This part was missed while the libebook / libebook-contacts library
splitup was done manually.
Name: libebook
Description: Client library for evolution address books
Version: @VERSION@
-Requires: libedataserver-1.2
+Requires: libedataserver-1.2 libebook-contacts-1.2 libedata-book-1.2
Requires.private: camel-1.2
Libs: -L${libdir} -lebook-1.2
Cflags: -I${privincludedir}
Name: libedatabook
Description: Backend library for evolution address books
Version: @VERSION@
-Requires: libebackend-1.2 libebook-1.2
+Requires: libebackend-1.2 libebook-contacts-1.2
Libs: -L${libdir} -ledata-book-1.2
Cflags: -I${privincludedir}