[glib] gfileutils: Fix a signed/unsigned integer comparison

[Philip Withnall <pwithnall src gnome org>]

commit c91411464ec02f1a7b66568b63facea941df6ff2
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Thu Nov 27 09:09:01 2014 +0000

    gfileutils: Fix a signed/unsigned integer comparison
    
    Also use size_t rather than int, allowing for larger files to be
    handled.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=700756

 glib/gfileutils.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/glib/gfileutils.c b/glib/gfileutils.c
index dc1513f..9386c5e 100644
--- a/glib/gfileutils.c
+++ b/glib/gfileutils.c
@@ -2026,8 +2026,8 @@ g_file_read_link (const gchar  *filename,
 {
 #ifdef HAVE_READLINK
   gchar *buffer;
-  guint size;
-  gint read_size;    
+  size_t size;
+  ssize_t read_size;
   
   size = 256; 
   buffer = g_malloc (size);
@@ -2046,7 +2046,7 @@ g_file_read_link (const gchar  *filename,
           return NULL;
         }
     
-      if (read_size < size) 
+      if ((size_t) read_size < size)
         {
           buffer[read_size] = 0;
           return buffer;