ProFTPDでGMTオフにしたい

前までは特に問題なくTimesGMT FALSEでローカルになっていたのだが気づいたときにはGMTに・・・
気になってソースを見てみたら下記の通り
素直にproftpd.confにこれを入れることにした次第．

SetEnv  TZ JST-9

proftpdだけchrootしている訳だから各ユーザのディレクトリにlocaltimeを置くのもシャクだしね．

struct tm *pr_localtime(pool *p, const time_t *t) {
  struct tm *sys_tm, *dup_tm;

#ifdef HAVE_TZNAME
  char *tzname_dup[2];

  /* The localtime(3) function has a nasty habit of changing the tzname
   * global variable as a side-effect.  This can cause problems, as when
   * the process has become chrooted, and localtime(3) sets/changes
   * tzname wrong.  (For more information on the tzname global variable,
   * see the tzset(3) man page.)
   *
   * The best way to deal with this issue (which is especially prominent
   * on systems running glibc-2.3 or later, which is particularly ill-behaved
   * in a chrooted environment, as it assumes the ability to find system
   * timezone files at paths which are no longer valid within the chroot)
   * is to set the TZ environment variable explicitly, before starting
   * proftpd.  You can also use the SetEnv configuration directive within
   * the proftpd.conf to set the TZ environment variable, e.g.:
   *
   *  SetEnv TZ PST
   *
   * To try to help sites which fail to do this, the tzname global variable
   * will be copied prior to the localtime(3) call, and the copy restored
   * after the call.  (Note that calling the ctime(3) and mktime(3)
   * functions also causes a similar overwriting/setting of the tzname
   * environment variable.)
   *
   * This hack is also used in the lib/pr-syslog.c code, to work around
   * mktime(3) antics.
   */
  memcpy(&tzname_dup, tzname, sizeof(tzname_dup));
#endif /* HAVE_TZNAME */