+ // Can't just check if anything has changed because it might have aborted
+ // on error last time... in which cas we need to re-run latex
+ // and collect the error messages (even if they are the same).
+ if (!FileInfo(output_file).exist()) {
+ lyxerr[Debug::DEPEND]
+ << "re-running LaTeX because output file doesn't exist." << endl;
+ } else if (!head.sumchange()) {