Hi, while playing with strange paths and TMPDIRs I ran across this: $ LANG=C.UTF-8 doxygen ../build/doc/Doxyfile sed: can't read /tmp/This is fü22935ing: No such file or directory sed: can't read crazy, MAN(1)/apt/apt-pkg/acquire-item.cc: No such file or directory sed: can't read /tmp/This is fü22958ing: No such file or directory sed: can't read crazy, MAN(1)/apt/apt-pkg/acquire-item.h: No such file or directory […] Error: dot: can't open /tmp/This is fü27628ing Error: dot: can't open crazy, MAN(1)/apt/build/doc/doxygen/html/graph_legend.dot Error: dot: can't open crazy, MAN(1)/apt/build/doc/doxygen/html/graph_legend.svg error: Problems running dot: exit code=4, command='dot', arguments='"/tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d' ' -f 1)$!/apt/build/doc/doxygen/html/graph_legend.dot" -Tsvg -o "/tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d' ' -f 1)$!/apt/build/doc/doxygen/html/graph_legend.svg"' […] error: Failed to rename file /tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d' ' -f 1)$!/apt/build/doc/doxygen/html/dir_18f22d4be2ca84c350e120b6506056ca_dep.svg to /tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d' ' -f 1)$!/apt/build/doc/doxygen/html/dir_18f22d4be2ca84c350e120b6506056ca_dep.svg.tmp! $ echo $? 0 $ pwd /tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d' ' -f 1)$!/apt/doc You can create this directory with: mkdir '/tmp/This is "fü$$ing crazy", $(man man | head -n1 | cut -d'"'"' '"'"' -f 1)$!' On the upside, doxygen seems to have no problem with such a path being TMPDIR, but if the source it should generate docs for is in such a path you get the errors above, but doxygen itself doesn't fail and actually generates documentation – just that it is devoid of most actual content: Boilerplate stuff expect that it has generated the colorized source files… Supporting such paths might be a bit much to ask for (even the generated ./config.status has problems with this path¹), but evaluating it as shell code might be a bit much as well (see the $$ expansion to the PID and "MAN(1)") and I think doxygen should exit non-zero if it encounters such errors, especially as it seems to give up after the first rename error (the last line shown above) while the others errors are printed for a lot of files. This behaviour is the actual reason for the report… I can't nor do I really feel motivated to report a bug for everything which jumped in my face while playing with this path as pretty much everything involving shell at some point finds at least something in it to explode… (which, frankly, is an appropriate response for such a "psycho-path"), which is why this report ends up here at doxygen rather than at dot (as it looks for me like it is dot which is exploding with this path, but I haven't tried). Best regards David Kalnischkies ¹ It gets confused by " as well as ' already. I actually started with slightly more reasonable paths until I figured out that $$ produces "fun"… after that the sanity factor hit rock bottom pretty fast. Haven't tried newlines yet through. I am not *that* crazy… ;)