added new maketzdata.pl in this location; regenerated tzdata.c straight from Olson data via vzic, without --pure option. Less carbohydrates and same great taste as the old tzdata.c, but without nasty compatability problems.

calendar/base/src/maketzdata.pl

@@ -0,0 +1,93 @@
+#!/usr/bin/perl
+#
+# This script takes a zones.tab file and directory, such as that
+# produced from an Olson-format tz database via vzic.  Note that it
+# should be used on vzic output WITHOUT the --pure option.  The
+# libical distribution includes ics files generated with --pure,
+# which results in both huge files and various incompatability
+# problems.
+#
+# vzic - http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/
+# olson db - ftp://elsie.nci.nih.gov/pub/
+#
+use File::Basename;
+
+$TZ_PREFIX = "/mozilla.org/20050126_1";
+
+if ($#ARGV != 1) {
+  print "Usage: maketzdata.pl zones.tab tzdata.c\n";
+  die;
+}
+
+$zonetabfile = $ARGV[0];
+$zonetabdir = dirname($zonetabfile);
+$tzdatafile = $ARGV[1];
+
+open ZONETAB, $zonetabfile || die "Can't open $zonetab";
+@zonetab = <ZONETAB>;
+close ZONETAB;
+
+open TZDATA, ">" . $tzdatafile || die "Can't open $tzdata for writing";
+
+print TZDATA <<EOF
+/**
+ ** Automagically generated via maketzdata.pl from zone.tab
+ ** DO NOT EDIT BY HAND
+ **/
+
+typedef struct {
+    /* the tzid  for this */
+    char *tzid;
+
+    /* latitude and longitude, in +/-HHMMSS format */
+    char *latitude;
+    char *longitude;
+
+    /* the ics VTIMEZONE component */
+    char *icstimezone;
+} ical_timezone_data_struct;
+
+static ical_timezone_data_struct ical_timezone_data[] = {
+EOF
+;
+
+$first = 1;
+
+foreach my $tz (@zonetab) {
+  chop $tz;
+  if ($first != 1) {
+    print TZDATA ",\n";
+  }
+  ($lat, $long, $name) = split(/ /, $tz);
+  my $tzdata = "";
+  {
+    local $/ = undef;
+    open TZFILE, "$zonetabdir/$name.ics" || die "Can't open timezone file $zonetabdir/$name";
+    $tzdata = <TZFILE>;
+    close TZFILE;
+  }
+
+  # escape quotes
+  $tzdata =~ s/\"/\\\"/sg;
+  $tzdata =~ s/\n/\\n/sg;
+
+  print TZDATA <<EOF
+{
+	"$TZ_PREFIX/$name",
+	"$lat", "$long",
+	"$tzdata"
+}
+EOF
+;
+
+  $first = 0;
+}
+
+print TZDATA <<EOF
+,
+{ NULL, NULL, NULL, NULL }
+};
+EOF
+;
+
+close TZDATA;