Update zdump and zic from tzcode 2012b.

diff --git a/ChangeLog b/ChangeLog
index 84038da..6f46ce1 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2012-04-25  Joseph Myers  <joseph@codesourcery.com>
 
+       * timezone/README: Update upstream location and email address for
+       tzcode and tzdata.
+       * timezone/zdump.c: Update from tzcode 2012b.
+       * timezone/zic.c: Likewise.
+
        * configure.in (libc_cv_as_needed): Remove test.
        * configure: Regenerated.
        * Makeconfig [$(have-as-needed) != yes] (as-needed): Remove

diff --git a/timezone/README b/timezone/README
index f9aebca..05bfe91 100644 (file)
--- a/timezone/README
+++ b/timezone/README
@@ -13,5 +13,5 @@ come from the tzdata package by Arthur David Olson et.al.
 Please check the ChangeLog files in the top level directory for the
 version of the tzcode and tzdata packages.
 
-These packages may be found at ftp://elsie.nci.nih.gov/pub/.  Commentary
-should be addressed to tz@elsie.nci.nih.gov.
+These packages may be found at ftp://munnari.oz.au/pub/.  Commentary
+should be addressed to tz@iana.org.

diff --git a/timezone/zdump.c b/timezone/zdump.c
index 7122bbf..67bed06 100644 (file)
--- a/timezone/zdump.c
+++ b/timezone/zdump.c
@@ -3,7 +3,7 @@
 ** 2009-05-17 by Arthur David Olson.
 */
 
-static char    elsieid[] = "@(#)zdump.c        8.9";
+static char    elsieid[] = "@(#)zdump.c        8.10";
 
 /*
 ** This code has been made independent of the rest of the time
@@ -236,7 +236,9 @@ const char * const  zone;
 }
 
 static void
-usage(const char *progname, FILE *stream, int status)
+usage(stream, status)
+FILE * const   stream;
+const int      status;
 {
        (void) fprintf(stream,
 _("%s: usage is %s [ --version ] [ --help ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n\
@@ -283,7 +285,7 @@ char *      argv[];
                        (void) printf("%s\n", elsieid);
                        exit(EXIT_SUCCESS);
                } else if (strcmp(argv[i], "--help") == 0) {
-                       usage(progname, stdout, EXIT_SUCCESS);
+                       usage(stdout, EXIT_SUCCESS);
                }
        vflag = 0;
        cutarg = NULL;
@@ -293,7 +295,7 @@ char *      argv[];
                else    cutarg = optarg;
        if ((c != EOF && c != -1) ||
                (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) {
-                       usage(progname, stderr, EXIT_FAILURE);
+                       usage(stderr, EXIT_FAILURE);
        }
        if (vflag) {
                if (cutarg != NULL) {

diff --git a/timezone/zic.c b/timezone/zic.c
index 01d9f13..1ea7b18 100644 (file)
--- a/timezone/zic.c
+++ b/timezone/zic.c
@@ -3,7 +3,7 @@
 ** 2006-07-17 by Arthur David Olson.
 */
 
-static char    elsieid[] = "@(#)zic.c  8.19";
+static char    elsieid[] = "@(#)zic.c  8.25";
 
 #include "private.h"
 #include "locale.h"
@@ -1621,6 +1621,53 @@ const char * const       string;
                        if (thistimei == 0)
                                writetype[0] = TRUE;
                }
+#ifndef LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH
+               /*
+               ** For some pre-2011 systems: if the last-to-be-written
+               ** standard (or daylight) type has an offset different from the
+               ** most recently used offset,
+               ** append an (unused) copy of the most recently used type
+               ** (to help get global "altzone" and "timezone" variables
+               ** set correctly).
+               */
+               {
+                       register int    mrudst, mrustd, hidst, histd, type;
+
+                       hidst = histd = mrudst = mrustd = -1;
+                       for (i = thistimei; i < thistimelim; ++i)
+                               if (isdsts[types[i]])
+                                       mrudst = types[i];
+                               else    mrustd = types[i];
+                       for (i = 0; i < typecnt; ++i)
+                               if (writetype[i]) {
+                                       if (isdsts[i])
+                                               hidst = i;
+                                       else    histd = i;
+                               }
+                       if (hidst >= 0 && mrudst >= 0 && hidst != mrudst &&
+                               gmtoffs[hidst] != gmtoffs[mrudst]) {
+                                       isdsts[mrudst] = -1;
+                                       type = addtype(gmtoffs[mrudst],
+                                               &chars[abbrinds[mrudst]],
+                                               TRUE,
+                                               ttisstds[mrudst],
+                                               ttisgmts[mrudst]);
+                                       isdsts[mrudst] = TRUE;
+                                       writetype[type] = TRUE;
+                       }
+                       if (histd >= 0 && mrustd >= 0 && histd != mrustd &&
+                               gmtoffs[histd] != gmtoffs[mrustd]) {
+                                       isdsts[mrustd] = -1;
+                                       type = addtype(gmtoffs[mrustd],
+                                               &chars[abbrinds[mrustd]],
+                                               FALSE,
+                                               ttisstds[mrustd],
+                                               ttisgmts[mrustd]);
+                                       isdsts[mrustd] = FALSE;
+                                       writetype[type] = TRUE;
+                       }
+               }
+#endif /* !defined LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH */
                thistypecnt = 0;
                for (i = 0; i < typecnt; ++i)
                        typemap[i] = writetype[i] ?  thistypecnt++ : -1;
@@ -1835,16 +1882,16 @@ const long                      gmtoff;
                register int    week;
 
                if (rp->r_dycode == DC_DOWGEQ) {
-                       week = 1 + rp->r_dayofmonth / DAYSPERWEEK;
-                       if ((week - 1) * DAYSPERWEEK + 1 != rp->r_dayofmonth)
+                       if ((rp->r_dayofmonth % DAYSPERWEEK) != 1)
                                return -1;
+                       week = 1 + rp->r_dayofmonth / DAYSPERWEEK;
                } else if (rp->r_dycode == DC_DOWLEQ) {
                        if (rp->r_dayofmonth == len_months[1][rp->r_month])
                                week = 5;
                        else {
-                               week = 1 + rp->r_dayofmonth / DAYSPERWEEK;
-                               if (week * DAYSPERWEEK - 1 != rp->r_dayofmonth)
+                               if ((rp->r_dayofmonth % DAYSPERWEEK) != 0)
                                        return -1;
+                               week = rp->r_dayofmonth / DAYSPERWEEK;
                        }
                } else  return -1;      /* "cannot happen" */
                (void) sprintf(result, "M%d.%d.%d",
@@ -1921,7 +1968,7 @@ const int                 zonecount;
                if (stdrp != NULL && stdrp->r_hiyear == 2037)
                        return;
        }
-       if (stdrp == NULL && zp->z_nrules != 0)
+       if (stdrp == NULL && (zp->z_nrules != 0 || zp->z_stdoff != 0))
                return;
        abbrvar = (stdrp == NULL) ? "" : stdrp->r_abbrvar;
        doabbr(result, zp->z_format, abbrvar, FALSE, TRUE);
@@ -1972,6 +2019,7 @@ const int                 zonecount;
        register char *                 envvar;
        register int                    max_abbr_len;
        register int                    max_envvar_len;
+       register int                    prodstic; /* all rules are min to max */
 
        max_abbr_len = 2 + max_format_len + max_abbrvar_len;
        max_envvar_len = 2 * max_abbr_len + 5 * 9;
@@ -1986,6 +2034,7 @@ const int                 zonecount;
        timecnt = 0;
        typecnt = 0;
        charcnt = 0;
+       prodstic = zonecount == 1;
        /*
        ** Thanks to Earl Chew
        ** for noting the need to unconditionally initialize startttisstd.
@@ -2007,6 +2056,8 @@ const int                 zonecount;
                                updateminmax(rp->r_loyear);
                        if (rp->r_hiwasnum)
                                updateminmax(rp->r_hiyear);
+                       if (rp->r_lowasnum || rp->r_hiwasnum)
+                               prodstic = FALSE;
                }
        }
        /*
@@ -2029,6 +2080,16 @@ wp = ecpyalloc(_("no POSIX environment variable for zone"));
                if (max_year <= INT_MAX - YEARSPERREPEAT)
                        max_year += YEARSPERREPEAT;
                else    max_year = INT_MAX;
+               /*
+               ** Regardless of any of the above,
+               ** for a "proDSTic" zone which specifies that its rules
+               ** always have and always will be in effect,
+               ** we only need one cycle to define the zone.
+               */
+               if (prodstic) {
+                       min_year = 1900;
+                       max_year = min_year + YEARSPERREPEAT;
+               }
        }
        /*
        ** For the benefit of older systems,