grep -l png14 /usr/lib/*.la 
/usr/lib/libgdkmm-2.4.la
/usr/lib/libgimpthumb-2.0.la
/usr/lib/libgimpui-2.0.la
/usr/lib/libgimpwidgets-2.0.la
/usr/lib/libgtkmm-2.4.la
/usr/lib/libpangomm-1.4.la