Linker issue

[pp23]

Hi,

I'm trying to use the ivi-shell for a simple prototype software. When I try to link it I get the following errors:

weston/libivi-shell.so: undefined reference to `text_backend_destroy'
weston/libivi-shell.so: undefined reference to `wet_load_module'
weston/libivi-shell.so: undefined reference to `wet_get_config'
weston/libivi-shell.so: undefined reference to `text_backend_init'

I link the exe against the following libs:

target_link_libraries(${PROJECT_NAME}
    ivi-shell
    wayland-client
    wayland-server
    weston
    wayland-cursor
    xcb-composite)

I cannot find the libs where the above functions are defined. Do you know which libs I have to add to get it linked in a correct way?