diff --git a/fluidsynth/src/fluidsynth.c b/fluidsynth/src/fluidsynth.c
index 0efa7643..076ee1cd 100644
--- a/fluidsynth/src/fluidsynth.c
+++ b/fluidsynth/src/fluidsynth.c
@@ -295,7 +295,9 @@ int main(int argc, char** argv)
   int with_server = 0;
   int dump = 0;
   int fast_render = 0;
+#ifdef LASH_ENABLED
   int connect_lash = 1;
+#endif
   char *optchars = "a:C:c:dE:f:F:G:g:hijK:L:lm:nO:o:p:R:r:sT:Vvz:";
 #ifdef LASH_ENABLED
   int enabled_lash = 0;		/* set to TRUE if lash gets enabled */
@@ -461,7 +463,9 @@ int main(int argc, char** argv)
       fluid_settings_setint(settings, "synth.audio-channels", audio_channels);
       break;
     case 'l':			/* disable LASH */
+#ifdef LASH_ENABLED
       connect_lash = 0;
+#endif
       break;
     case 'm':
       if (FLUID_STRCMP (optarg, "help") == 0)
diff --git a/fluidsynth/src/midi/fluid_midi.c b/fluidsynth/src/midi/fluid_midi.c
index 5d3621b8..65e1fb64 100644
--- a/fluidsynth/src/midi/fluid_midi.c
+++ b/fluidsynth/src/midi/fluid_midi.c
@@ -437,7 +437,7 @@ fluid_midi_file_read_event(fluid_midi_file *mf, fluid_track_t *track)
     unsigned char *metadata = NULL;
     unsigned char *dyn_buf = NULL;
     unsigned char static_buf[256];
-    int nominator, denominator, clocks, notes, sf, mi;
+    int nominator, denominator, clocks, notes;
     fluid_midi_event_t *evt;
     int channel = 0;
     int param1 = 0;
@@ -654,8 +654,9 @@ fluid_midi_file_read_event(fluid_midi_file *mf, fluid_track_t *track)
                     result = FLUID_FAILED;
                     break;
                 }
-                sf = metadata[0];
-                mi = metadata[1];
+                /* We don't care about key signatures anyway */
+                /* sf = metadata[0];
+                mi = metadata[1]; */
                 break;
 
             case MIDI_SEQUENCER_EVENT:
diff --git a/fluidsynth/src/sfloader/fluid_defsfont.c b/fluidsynth/src/sfloader/fluid_defsfont.c
index 81e54013..13817fe7 100644
--- a/fluidsynth/src/sfloader/fluid_defsfont.c
+++ b/fluidsynth/src/sfloader/fluid_defsfont.c
@@ -579,7 +579,7 @@ fluid_defpreset_noteon(fluid_defpreset_t* preset, fluid_synth_t* synth, int chan
 {
   fluid_preset_zone_t *preset_zone, *global_preset_zone;
   fluid_inst_t* inst;
-  fluid_inst_zone_t *inst_zone, *global_inst_zone, *z;
+  fluid_inst_zone_t *inst_zone, *global_inst_zone;
   fluid_sample_t* sample;
   fluid_voice_t* voice;
   fluid_mod_t * mod;
@@ -625,8 +625,6 @@ fluid_defpreset_noteon(fluid_defpreset_t* preset, fluid_synth_t* synth, int chan
 	  }
 
 
-	  z = inst_zone;
-
 	  /* Instrument level, generators */
 
 	  for (i = 0; i < GEN_LAST; i++) {
diff --git a/fluidsynth/src/sfloader/fluid_ramsfont.c b/fluidsynth/src/sfloader/fluid_ramsfont.c
index a998183d..a45c5244 100644
--- a/fluidsynth/src/sfloader/fluid_ramsfont.c
+++ b/fluidsynth/src/sfloader/fluid_ramsfont.c
@@ -889,7 +889,7 @@ fluid_rampreset_noteon (fluid_rampreset_t* preset, fluid_synth_t* synth, int cha
 {
   fluid_preset_zone_t *preset_zone;
   fluid_inst_t* inst;
-  fluid_inst_zone_t *inst_zone, *global_inst_zone, *z;
+  fluid_inst_zone_t *inst_zone, *global_inst_zone;
   fluid_sample_t* sample;
   fluid_voice_t* voice;
   fluid_mod_t * mod;
@@ -936,8 +936,6 @@ fluid_rampreset_noteon (fluid_rampreset_t* preset, fluid_synth_t* synth, int cha
 	    return FLUID_FAILED;
 	  }
 
-	  z = inst_zone;
-
 	  /* Instrument level, generators */
 
 	  for (i = 0; i < GEN_LAST; i++) {
diff --git a/fluidsynth/src/synth/fluid_synth.c b/fluidsynth/src/synth/fluid_synth.c
index 1e782f14..ff3c4147 100644
--- a/fluidsynth/src/synth/fluid_synth.c
+++ b/fluidsynth/src/synth/fluid_synth.c
@@ -2371,7 +2371,10 @@ fluid_synth_nwrite_float(fluid_synth_t* synth, int len,
   fluid_real_t** left_in;
   fluid_real_t** right_in;
   double time = fluid_utime();
-  int i, num, available, count, bytes;
+  int i, num, available, count;
+#ifdef WITH_FLOAT
+  int bytes;
+#endif
   float cpu_load;
 
   if (!synth->eventhandler->is_threadsafe)
@@ -2385,7 +2388,9 @@ fluid_synth_nwrite_float(fluid_synth_t* synth, int len,
     fluid_rvoice_mixer_get_bufs(synth->eventhandler->mixer, &left_in, &right_in);
 
     num = (available > len)? len : available;
+#ifdef WITH_FLOAT
     bytes = num * sizeof(float);
+#endif
 
     for (i = 0; i < synth->audio_channels; i++) {
 #ifdef WITH_FLOAT
@@ -2410,7 +2415,9 @@ fluid_synth_nwrite_float(fluid_synth_t* synth, int len,
     fluid_rvoice_mixer_get_bufs(synth->eventhandler->mixer, &left_in, &right_in);
 
     num = (FLUID_BUFSIZE > len - count)? len - count : FLUID_BUFSIZE;
+#ifdef WITH_FLOAT
     bytes = num * sizeof(float);
+#endif
 
     for (i = 0; i < synth->audio_channels; i++) {
 #ifdef WITH_FLOAT