Package 'libpcre', required by 'GLib', not found Package libpcre was not found in the pkg-config search path. Perhaps you should add the directory containing `libpcre.pc' to the PKG_CONFIG_PATH environment variable
Это мусор от cmake, к нему и вопрос. libpcre-devel не нужен для сборки приложений использующих glib.
Ладно...