<div class="gmail_quote">On Tue, Feb 7, 2012 at 13:14, Eugeni Dodonov <<a href="mailto:eugeni.dodonov@intel.com">eugeni.dodonov@intel.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Add an explicit check for libpng to prevent: /usr/bin/ld: libtoytoolkit.a(cairo-util.o): undefined reference to symbol 'png_get_valid@@PNG15_0' /usr/bin/ld: note: 'png_get_valid@@PNG15_0' is defined in DSO /usr/lib/libpng15.so.15 so try adding it to the linker command line /usr/lib/libpng15.so.15: could not read symbols: Invalid operation Or similar errors. Signed-off-by: Eugeni Dodonov <<a href="mailto:eugeni.dodonov@intel.com">eugeni.dodonov@intel.com</a>> </blockquote><div> Forgot to mention - this applies to both weston and wayland-demos projects. </div></div> -- Eugeni Dodonov<a href="http://eugeni.dodonov.net/" target="_blank"> </a>