[tracker/wip/sam/meson: 18/19] Fix another pointer type mismatch

[Sam Thursfield <sthursfield src gnome org>]

commit ef688fc05f6ebcd4678a02e71a1cc77928c1e19b
Author: Sam Thursfield <sam afuera me uk>
Date:   Thu Feb 23 13:32:25 2017 +0000

    Fix another pointer type mismatch

 src/libtracker-data/tracker-db-journal.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-journal.c b/src/libtracker-data/tracker-db-journal.c
index d82f7ca..d7a9a7e 100644
--- a/src/libtracker-data/tracker-db-journal.c
+++ b/src/libtracker-data/tracker-db-journal.c
@@ -153,8 +153,9 @@ journal_eof (JournalReader *jreader)
 }
 
 static guint32
-read_uint32 (const guint8 *data)
+read_uint32 (const gchar *data_signed)
 {
+       guint8 *data = (guint8 *)data_signed;
        return data[0] << 24 |
               data[1] << 16 |
               data[2] << 8 |