Stuff

checking for libpanelapplet-2.0... Package libpanelapplet-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `libpanelapplet-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'libpanelapplet-2.0' found
configure: error: Library requirements (libpanelapplet-2.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.