[libgweather] build: Fix -Werror build for clang

[Giovanni Campagna <gcampagna src gnome org>]

commit 976e3106f7a29ac9639c30f2fc6829fcd4b29c49
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Wed Jan 6 03:18:01 2016 +0800

    build: Fix -Werror build for clang
    
    The argument tzname is renamed to tz_name to prevent confusion with
    the global variable.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=760178

 libgweather/gweather-timezone.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/libgweather/gweather-timezone.c b/libgweather/gweather-timezone.c
index 7364f69..a120061 100644
--- a/libgweather/gweather-timezone.c
+++ b/libgweather/gweather-timezone.c
@@ -58,7 +58,7 @@ struct _GWeatherTimezone {
 #define TZ_TTINFO_ISDST_OFFSET 4
 
 static gboolean
-parse_tzdata (const char *tzname, time_t start, time_t end,
+parse_tzdata (const char *tz_name, time_t start, time_t end,
              int *offset, gboolean *has_dst, int *dst_offset)
 {
     char *filename, *contents;
@@ -71,7 +71,7 @@ parse_tzdata (const char *tzname, time_t start, time_t end,
     char initial_isdst, second_isdst;
     int i;
 
-    filename = g_build_filename (ZONEINFO_DIR, tzname, NULL);
+    filename = g_build_filename (ZONEINFO_DIR, tz_name, NULL);
     if (!g_file_get_contents (filename, &contents, &length, NULL)) {
        g_free (filename);
        return FALSE;
@@ -84,7 +84,7 @@ parse_tzdata (const char *tzname, time_t start, time_t end,
        return FALSE;
     }
 
-    timecnt = GUINT32_FROM_BE (*(guint32 *)(contents + TZ_TIMECNT_OFFSET));
+    timecnt = GUINT32_FROM_BE (*(guint32 *)(void *)(contents + TZ_TIMECNT_OFFSET));
     transitions = (void *)(contents + TZ_TRANSITIONS_OFFSET);
     transitions_size = timecnt * sizeof (*transitions);
     ttinfo_map = (void *)(contents + TZ_TRANSITIONS_OFFSET + transitions_size);
@@ -112,7 +112,7 @@ parse_tzdata (const char *tzname, time_t start, time_t end,
     }
 
     /* Copy the data out of the corresponding ttinfo structs */
-    initial_offset = *(gint32 *)(ttinfos +
+    initial_offset = *(gint32 *)(void *)(ttinfos +
                                 initial_transition * TZ_TTINFO_SIZE +
                                 TZ_TTINFO_GMTOFF_OFFSET);
     initial_offset = GINT32_FROM_BE (initial_offset);
@@ -121,7 +121,7 @@ parse_tzdata (const char *tzname, time_t start, time_t end,
                      TZ_TTINFO_ISDST_OFFSET);
 
     if (second_transition != -1) {
-       second_offset = *(gint32 *)(ttinfos +
+       second_offset = *(gint32 *)(void *)(ttinfos +
                                    second_transition * TZ_TTINFO_SIZE +
                                    TZ_TTINFO_GMTOFF_OFFSET);
        second_offset = GINT32_FROM_BE (second_offset);