diff options
Diffstat (limited to 'time/tzset.c')
| -rw-r--r-- | time/tzset.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/time/tzset.c b/time/tzset.c index 886ac6c0c8..13360b445b 100644 --- a/time/tzset.c +++ b/time/tzset.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -77,15 +77,21 @@ static int compute_change __P ((tz_rule *rule, int year)); static char *old_tz = NULL; /* Interpret the TZ envariable. */ -void __tzset_internal __P ((void)); +void __tzset_internal __P ((int always)); void -__tzset_internal () +__tzset_internal (always) + int always; { + static int is_initialized = 0; register const char *tz; register size_t l; unsigned short int hh, mm, ss; unsigned short int whichrule; + if (is_initialized && !always) + return; + is_initialized = 1; + /* Examine the TZ environment variable. */ tz = getenv ("TZ"); @@ -375,7 +381,7 @@ size_t __tzname_cur_max; long int __tzname_max () { - __tzset_internal (); + __tzset_internal (0); return __tzname_cur_max; } @@ -473,7 +479,7 @@ __tz_compute (timer, tm) time_t timer; const struct tm *tm; { - __tzset_internal (); + __tzset_internal (0); if (! compute_change (&tz_rules[0], 1900 + tm->tm_year) || ! compute_change (&tz_rules[1], 1900 + tm->tm_year)) @@ -510,7 +516,7 @@ __tzset (void) { __libc_lock_lock (__tzset_lock); - __tzset_internal (); + __tzset_internal (1); if (!__use_tzfile) { |