=== modified file 'configure.ac'
--- configure.ac	2012-07-17 07:30:25 +0000
+++ configure.ac	2012-07-21 09:10:00 +0000
@@ -1220,7 +1220,7 @@
   linux/version.h sys/systeminfo.h
   stdio_ext.h fcntl.h coff.h pty.h
   sys/vlimit.h sys/resource.h
-  sys/utsname.h pwd.h utmp.h dirent.h util.h)
+  sys/utsname.h pwd.h utmp.h dirent.h util.h libutil.h)
 
 AC_MSG_CHECKING(if personality LINUX32 can be set)
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
@@ -3344,7 +3344,7 @@
     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
     ;;
 
-  darwin )
+  darwin | freebsd )
     AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)] )
     dnl Not used, because PTY_ITERATION is defined.
     AC_DEFINE(FIRST_PTY_LETTER, ['p'])
@@ -3356,7 +3356,7 @@
     AC_DEFINE(PTY_TTY_NAME_SPRINTF, [] )
     ;;
 
-  gnu | freebsd | netbsd | openbsd )
+  gnu | netbsd | openbsd )
     AC_DEFINE(FIRST_PTY_LETTER, ['p'])
     ;;
 

=== modified file 'src/process.c'
--- src/process.c	2012-07-20 07:29:04 +0000
+++ src/process.c	2012-07-21 09:10:00 +0000
@@ -83,6 +83,10 @@
 #include <util.h>
 #endif
 
+#ifdef HAVE_LIBUTIL_H
+#include <libutil.h>
+#endif
+
 #ifdef HAVE_PTY_H
 #include <pty.h>
 #endif