[gtk-doc] highligh: adjust to api change

[Stefan Kost <stefkost src gnome org>]

commit b19a270e0ac891a425f582cccac68a9472b1c838
Author: Stefan Kost <ensonic users sf net>
Date:   Mon May 25 22:11:27 2009 +0300

    highligh: adjust to api change
    
    Option -G has become a different option, use long option --class-name instead.
---
 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure.in b/configure.in
index 6d06c13..dcd073e 100644
--- a/configure.in
+++ b/configure.in
@@ -98,7 +98,7 @@ if test -n "$HIGHLIGHT"; then
 else
   AC_PATH_PROG([HIGHLIGHT], [highlight])
   if test -n "$HIGHLIGHT"; then
-    HIGHLIGHT_OPTIONS="-X -f -Ggtkdoc "
+    HIGHLIGHT_OPTIONS="-X -f --class-name=gtkdoc "
   else
     AC_PATH_PROG([HIGHLIGHT], [vim])
     if test -n "$HIGHLIGHT"; then