[glib] Remove a gccism

[Matthias Clasen <matthiasc src gnome org>]

commit be933706059a8d92fb8858219f5936f332b68f4a
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 13 15:29:29 2011 -0400

    Remove a gccism
    
    Pointed out in bug 656152.

 glib/tests/checksum.c |   18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/glib/tests/checksum.c b/glib/tests/checksum.c
index a58d8a0..eb170e2 100644
--- a/glib/tests/checksum.c
+++ b/glib/tests/checksum.c
@@ -619,9 +619,23 @@ hexval (const gchar c)
 {
   switch (c)
     {
-     case '0' ... '9':
+     case '0':
+     case '1':
+     case '2':
+     case '3':
+     case '4':
+     case '5':
+     case '6':
+     case '7':
+     case '8':
+     case '9':
        return c - '0';
-     case 'a' ... 'f':
+     case 'a':
+     case 'b':
+     case 'c':
+     case 'd':
+     case 'e':
+     case 'f':
        return 10 + c - 'a';
      default:
        return 0;