lib/apidoc/.apidoc: lib/apidoc/Doxyfile lib/vserver.h lib/internal.h
-rm -rf lib/apidoc/html lib/apidoc/latex lib/apidoc/man
- cd "$$(dirname '$<')" && $(DOXYGEN) "$$(basename '$<')"
+ -cd '$(<D)' && $(DOXYGEN) -u '$(<F)'
+ cd '$(<D)' && $(DOXYGEN) '$(<F)'
$(MAKE) -j1 -C lib/apidoc/latex
touch '$@'