--- portmidi~/pm_linux/pmlinuxalsa.c	2009-09-16 05:41:04.000000000 +0200
+++ portmidi/pm_linux/pmlinuxalsa.c	2009-09-16 05:45:29.000000000 +0200
@@ -242,8 +242,8 @@
     alsa_descriptor_type desc = (alsa_descriptor_type) midi->descriptor;
     if (!desc) return pmBadPtr;
 
-    if (pm_hosterror = snd_seq_disconnect_to(seq, desc->this_port, 
-                                             desc->client, desc->port)) {
+    if ((pm_hosterror = snd_seq_disconnect_to(seq, desc->this_port, 
+                                             desc->client, desc->port))) {
         // if there's an error, try to delete the port anyway, but don't
         // change the pm_hosterror value so we retain the first error
         snd_seq_delete_port(seq, desc->this_port);
@@ -332,8 +332,8 @@
 {
     alsa_descriptor_type desc = (alsa_descriptor_type) midi->descriptor;
     if (!desc) return pmBadPtr;
-    if (pm_hosterror = snd_seq_disconnect_from(seq, desc->this_port, 
-                                               desc->client, desc->port)) {
+    if ((pm_hosterror = snd_seq_disconnect_from(seq, desc->this_port, 
+                                               desc->client, desc->port))) {
         snd_seq_delete_port(seq, desc->this_port); /* try to close port */
     } else {
         pm_hosterror = snd_seq_delete_port(seq, desc->this_port);
@@ -606,7 +606,7 @@
     case SND_SEQ_EVENT_SYSEX: {
         const BYTE *ptr = (const BYTE *) ev->data.ext.ptr;
         /* assume there is one sysex byte to process */
-        pm_read_bytes(midi, ptr, ev->data.ext.len, timestamp);
+        pm_read_bytes(midi, (unsigned char*)ptr, ev->data.ext.len, timestamp);
         break;
     }
     }