checking for ... Must specify package names on the command line ./configure: line 42346: avahi-client: command not found ./configure: line 42347: avahi-client: command not found Must specify package names on the command line ./configure: line 42350: avahi-client: command not found configure: error: Library requirements () not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them. make: *** [config.status] Error 1