Those are aRts/KDE-specific changes which won't be backfolded into the
original GSL repository but are needed here:

--- gsldatahandle-vorbis.c	Tue Jul 30 01:26:06 2002
+++ /usr/src/arts.dh/flow/gsl/gsldatahandle-vorbis.c	Tue Jul 30 17:46:33 2002
@@ -19,4 +19,5 @@
 #include "gsldatahandle-vorbis.h"
 
+#if GSL_HAVE_OGGVORBIS
 #include "gslfilehash.h"
 #include <ogg/ogg.h>
@@ -239,5 +240,9 @@ read_packet (VorbisHandle *vhandle)
   
   vhandle->pcm_pos = ov_pcm_tell (&vhandle->ofile) - vhandle->soffset;
+#if GSL_HAVE_OGGVORBIS_RC3
   vhandle->pcm_length = ov_read_float (&vhandle->ofile, &pcm, &stream_id);
+#else
+  vhandle->pcm_length = ov_read_float (&vhandle->ofile, &pcm, (~0U>>1), &stream_id);
+#endif
   if (vhandle->pcm_pos < 0 || vhandle->pcm_length < 0 || stream_id != vhandle->stream)
     {
@@ -368,2 +373,4 @@ gsl_data_handle_new_ogg_vorbis (const gc
     }
 }
+#endif /* GSL_HAVE_OGGVORBIS */
+
--- gsldefs.h	Wed Jul 24 05:50:17 2002
+++ /usr/src/arts.dh/flow/gsl/gsldefs.h	Tue Jul 30 02:29:55 2002
@@ -20,5 +20,8 @@
 #define __GSL_DEFS_H__
 
-#ifdef	GSL_WANT_GLIB_WRAPPER
+/* configure checks */
+#include <gsl/gslconfig.h>
+
+#if	GSL_USE_GSL_GLIB
 #include <gsl/gslglib.h>	/* GSL just uses a certain subset of GLib */
 #else
@@ -26,9 +29,4 @@
 #endif
 
-
-/* configure checks */
-#include <gsl/gslconfig.h>
-
-
 #ifdef __cplusplus
 extern "C" {
@@ -103,5 +101,5 @@ typedef void     (*GslModuleFreeFunc)   
 
 #if defined (BSE_COMPILATION) || defined (BSE_PLUGIN_FALLBACK) \
-    || defined (GSL_WANT_GLIB_WRAPPER) || defined (GSL_EXTENSIONS)
+    || (GSL_USE_GSL_GLIB) || defined (GSL_EXTENSIONS)
 #  define if_expect(cond)		if (GSL_GCC_EXPECT (cond))
 #  define if_reject(cond)		if (GSL_GCC_REJECT (cond))
--- gslloader-oggvorbis.c	Tue Jul 30 01:26:06 2002
+++ /usr/src/arts.dh/flow/gsl/gslloader-oggvorbis.c	Tue Jul 30 05:06:32 2002
@@ -19,4 +19,5 @@
 #include "gsl/gslloader.h"
 
+#if GSL_HAVE_OGGVORBIS
 #include <gsl/gsldatahandle.h>
 #include "gsldatahandle-vorbis.h"
@@ -168,2 +169,9 @@ _gsl_init_loader_oggvorbis (void)
   gsl_loader_register (&loader);
 }
+#else
+void
+_gsl_init_loader_oggvorbis (void)
+{
+  /* dummy */
+}
+#endif /* GSL_HAVE_OGGVORBIS */