text: --- html2latex.c.intermediate	2015-12-18 18:38:34.000000000 +0200
  +++ html2latex.c
  @@ -12,7 +12,7 @@
   #if NEED_GETOPT_H
   #include <getopt.h>
   #else
  -#if defined(__FreeBSD__) && __FreeBSD__ >= 3
  +#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__DragonFly__)
   #include <unistd.h>
   #endif
   #endif
  