Direct #undefs removed to allow flexible manipulation

via config options. Unneded #defines removed.
Improved dependance of "snd.h" and NSND.

sys/i386/isa/sound/local.h

@@ -1,17 +1,10 @@
-/*	Generated by configure. Don't edit!!!!	*/
+/* These few lines are used by FreeBSD (only??). */
 
-#define KERNEL_SOUNDCARD
-#undef  EXCLUDE_PAS
-#undef  EXCLUDE_SB
-#undef  EXCLUDE_ADLIB
-#undef  EXCLUDE_GUS
-#undef	EXCLUDE_MPU401
-#undef  EXCLUDE_SBPRO
-#undef  EXCLUDE_AUDIO
-#undef  EXCLUDE_MIDI
-#undef  EXCLUDE_YM3812
-#undef  EXCLUDE_SEQUENCER
-#undef  EXCLUDE_CHIP_MIDI
+#include "snd.h"
+
+#if NSND > 0
+#define CONFIGURE_SOUNDCARD
+#endif
 
 #define DSP_BUFFSIZE 32768
 #define SELECTED_SOUND_OPTIONS	0xffffffff

sys/i386/isa/sound/os.h

@@ -58,15 +58,6 @@
 #include "buf.h"
 #include "i386/isa/isa_device.h"
 
-/* These few lines are used by FreeBSD (only??). */
-
-#if NSND > 0
-#define KERNEL_SOUNDCARD
-#else
-#undef KERNEL_SOUNDCARD
-#endif
-
-
 /*
  * Rest of the file is compiled only if the driver is really required.
  */

sys/i386/isa/sound/sound_config.h

@@ -30,27 +30,25 @@
 
 #include "local.h"
 
-
-#undef CONFIGURE_SOUNDCARD
-#undef DYNAMIC_BUFFER
-
-#ifdef KERNEL_SOUNDCARD
-#define CONFIGURE_SOUNDCARD
-#define DYNAMIC_BUFFER
-#undef LOADABLE_SOUNDCARD
-#endif
-
 #ifdef EXCLUDE_SEQUENCER
+#ifndef EXCLUDE_MIDI
 #define EXCLUDE_MIDI
+#endif
+#ifndef EXCLUDE_YM3812
 #define EXCLUDE_YM3812
+#endif
+#ifndef EXCLUDE_OPL3
 #define EXCLUDE_OPL3
 #endif
+#endif
 
 /** UWM - new MIDI stuff **/
 
 #ifdef EXCLUDE_CHIP_MIDI
+#ifndef EXCLUDE_PRO_MIDI
 #define EXCLUDE_PRO_MIDI
 #endif
+#endif
 
 /** UWM - stuff **/