Пакет "фиолетовый" не найден

Я пытаюсь исправить pidgin facebook, но я получаю такую ​​ошибку:

configure: error: Package requirements (purple <  3) were not met:

No package 'purple' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables PURPLE_CFLAGS
and PURPLE_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

Может кто-то помочь мне с этим?