/* gifLabel - create labels as GIF files. */ int gifLabelMaxWidth(char **labels, int labelCount); /* Return maximum pixel width of labels. It's ok to have * NULLs in labels array. */ void gifLabelVerticalText(char *fileName, char **labels, int labelCount, int height); /* Make a gif file with given labels. This will check to see if fileName * exists already, and if so do nothing. */