[glib] Bug 678332-gio/gconverterinputstream.c: Fix build

[Chun-wei Fan <fanchunwei src gnome org>]

commit 98f201b73b4ba5b5dfd86ebcd524ea8f73855174
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Tue Jun 19 16:35:26 2012 +0800

    Bug 678332-gio/gconverterinputstream.c: Fix build
    
    Apparently the previous change to this file broke GCC builds, so fix that.

 gio/gconverterinputstream.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gio/gconverterinputstream.c b/gio/gconverterinputstream.c
index 1684635..0c04bfe 100644
--- a/gio/gconverterinputstream.c
+++ b/gio/gconverterinputstream.c
@@ -415,7 +415,7 @@ read_internal (GInputStream *stream,
   buffer_read (&priv->converted_buffer, buffer, available);
 
   total_bytes_read = available;
-  (char *) buffer += available;
+  buffer = (char *) buffer + available;
   count -= available;
 
   /* If there is no data to convert, and no pre-converted data,