Following the "Installing OM2.x On Ubuntu64 - Headless" guide... Step 4 ./configure
gives this error * The following headers/libraries are missing: jpeglib ungif jpeglib.h freetype gif_lib.h * Disabling pdf2swf tool... * Disabling jpeg2swf tool... * Disabling gif2swf tool... A little strange, as last time I followed this guide Step 4 was not a problem? Any ideas?