[gtk+] gtk/gtklevelbar.c: Fix build on non-C99 compilers

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

commit 628892bce8910976817037cb8de84794a0cb6883
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Aug 15 15:52:01 2012 +0800

    gtk/gtklevelbar.c: Fix build on non-C99 compilers
    
    -Include fallback-c89.c for the usage of round(), where an implementation
     of round() is provided for compilers that don't have it
    -Use g_ascii_strtod() instead of strtof as strtof() may not be universally
     available.

 gtk/gtklevelbar.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtklevelbar.c b/gtk/gtklevelbar.c
index 7207d01..d82d385 100644
--- a/gtk/gtklevelbar.c
+++ b/gtk/gtklevelbar.c
@@ -97,6 +97,8 @@
 #include <math.h>
 #include <stdlib.h>
 
+#include "fallback-c89.c"
+
 #define DEFAULT_BLOCK_SIZE 3
 
 /* these don't make sense outside of GtkLevelBar, so we don't add
@@ -647,7 +649,7 @@ offset_start_element (GMarkupParseContext  *context,
 
       if (name && value_str)
         {
-          offset = gtk_level_bar_offset_new (name, strtof (value_str, NULL));
+          offset = gtk_level_bar_offset_new (name, g_ascii_strtod (value_str, NULL));
           parser_data->offsets = g_list_prepend (parser_data->offsets, offset);
         }
     }