--- allegro-4.4.1.1.old/src/unix/uossmidi.c
+++ allegro-4.4.1.1/src/unix/uossmidi.c
@@ -101,31 +101,32 @@
    _dummy_noop2                 /* TODO */
 };
 
-
+static int HaveNoSynth = 0;
 
 /* as required by the OSS API */
 void seqbuf_dump(void)
 {
-   if (_seqbufptr) {
-      write(seq_fd, _seqbuf, _seqbufptr);
-      _seqbufptr = 0;
-   }
+    if (_seqbufptr) {
+        if (!HaveNoSynth) write (seq_fd, _seqbuf, _seqbufptr);
+        _seqbufptr = 0;
+    }
 }
 
-
-
 /* attempt to open sequencer device */
 static int seq_attempt_open(void)
 {
    char tmp1[128], tmp2[128], tmp3[128];
    int fd;
 
+   if (HaveNoSynth) return (-1);
+
    ustrzcpy(seq_driver, sizeof(seq_driver), get_config_string(uconvert_ascii("sound", tmp1),
 					                      uconvert_ascii("oss_midi_driver", tmp2),
 					                      uconvert_ascii("/dev/sequencer", tmp3)));
 
    fd = open(uconvert_toascii(seq_driver, tmp1), O_WRONLY);
-   if (fd < 0) 
+
+   if (fd < 0)
       uszprintf(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("%s: %s"), seq_driver, ustrerror(errno));
 
    return fd;
@@ -142,6 +143,8 @@
    char tmp1[64], tmp2[256];
    int score = 0, best_score, best_device;
 
+   if (HaveNoSynth) return (0);
+
    if (ioctl(fd, SNDCTL_SEQ_NRSYNTHS, &num_synths) == -1)
       return 0;
 
@@ -253,6 +256,8 @@
    struct sbi_instrument ins;
    int i;
 
+   if (HaveNoSynth) return;
+
    ins.device = seq_device;
    ins.key = FM_PATCH;
    memset(ins.operators, 0, sizeof(ins.operators));
@@ -278,6 +283,7 @@
 /* FM synth setup */
 static void seq_setup_fm (void)
 {
+   if (HaveNoSynth) return;
    seq_set_fm_patches(seq_fd);
    seq_drum_start = midi_oss.voices - 5;
 }
@@ -290,6 +296,7 @@
 {
    int bits = 0, drums;
 
+   if (HaveNoSynth) return;
    seq_drum_start = midi_oss.voices;
    if (seq_drum_start > 32) seq_drum_start = 32;
    
@@ -331,6 +338,8 @@
  */
 static int oss_midi_detect(int input)
 {
+   if (HaveNoSynth) return FALSE;
+
    if (input) {
       ustrzcpy(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("Input is not supported"));
       return FALSE;
@@ -354,6 +363,8 @@
    char tmp1[128], tmp2[128], tmp3[128];
    unsigned int i;
 
+   if (HaveNoSynth) return -1;
+
    if (input) {
       ustrzcpy(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("Input is not supported"));
       return -1;
@@ -365,8 +376,14 @@
 
    if (!seq_find_synth(seq_fd)) {
       close(seq_fd);
+
+#ifdef NOTDEF
       ustrzcpy(allegro_error, ALLEGRO_ERROR_SIZE, get_config_text("No supported synth type found"));
       return -1;
+#else
+      HaveNoSynth = 1;
+      return (0);
+#endif
    }
 
    ioctl(seq_fd, SNDCTL_SEQ_RESET);
@@ -412,6 +429,7 @@
    int fd, vol, ret;
    char tmp[128];
 
+   if (HaveNoSynth) return 0;
    fd = open(uconvert_toascii(mixer_driver, tmp), O_WRONLY);
    if (fd < 0)
       return -1;
@@ -434,6 +452,7 @@
    int fd, vol;
    char tmp[128];
 
+   if (HaveNoSynth) return (0);
    fd = open(uconvert_toascii(mixer_driver, tmp), O_RDONLY);
    if (fd < 0)
       return -1;
@@ -468,6 +487,8 @@
 static int get_hardware_voice (int voice)
 {
    int hwvoice = voice;
+
+   if (HaveNoSynth) return (15);
    
    /* FIXME: is this OK/useful for other things than AWE32? */
    if (seq_synth_type != SYNTH_TYPE_FM && seq_drum_start > 0) {
@@ -496,6 +517,8 @@
    int voice, hwvoice;
    int is_percussion = 0;
 
+   if (HaveNoSynth) return;
+
    /* percussion? */
    if (inst > 127) {
       voice = _midi_allocate_voice(seq_drum_start, midi_driver->voices-1);
@@ -543,8 +566,12 @@
  */
 static void oss_midi_key_off(int voice)
 {
+   int hwvoice;
+
+   if (HaveNoSynth) return;
+
    /* Get the hardware voice corresponding to this virtual voice. */
-   int hwvoice = get_hardware_voice (voice);
+   hwvoice = get_hardware_voice (voice);
       
    SEQ_STOP_NOTE(seq_device, hwvoice, seq_note[voice], 64);
    SEQ_DUMPBUF();
@@ -559,6 +586,7 @@
  */
 static void oss_midi_set_volume(int voice, int vol)
 {
+   if (HaveNoSynth) return;
    SEQ_CONTROL(seq_device, voice, CTL_MAIN_VOLUME, vol);
 }
 
@@ -569,6 +597,7 @@
  */
 static void oss_midi_set_pitch(int voice, int note, int bend)
 {
+   if (HaveNoSynth) return;
    SEQ_CONTROL(seq_device, voice, CTRL_PITCH_BENDER, 8192 + bend);
 }
 
@@ -583,7 +612,7 @@
       return;
 
    if (seq_fd > 0) {
-      close(seq_fd);
+      if (!HaveNoSynth) close(seq_fd);
       seq_fd = -1;
    }
 }