diff --git a/pm_linux/finddefault.c b/pm_linux/finddefault.c
index 6340316..1cdb76d 100644
--- a/pm_linux/finddefault.c
+++ b/pm_linux/finddefault.c
@@ -5,7 +5,11 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <ctype.h>
 #include "portmidi.h"
+#include "pmutil.h"
+#include "pminternal.h"
+#include "finddefault.h"
 
 #define STRING_MAX 256
 
diff --git a/pm_linux/finddefault.h b/pm_linux/finddefault.h
new file mode 100644
index 0000000..5d21203
--- /dev/null
+++ b/pm_linux/finddefault.h
@@ -0,0 +1 @@
+PmDeviceID find_default_device(char *path, int input, PmDeviceID id);
diff --git a/pm_linux/pmlinux.c b/pm_linux/pmlinux.c
index 5105ecd..beef2e8 100755
--- a/pm_linux/pmlinux.c
+++ b/pm_linux/pmlinux.c
@@ -14,6 +14,7 @@
 #include "portmidi.h"
 #include "pmutil.h"
 #include "pminternal.h"
+#include "finddefault.h"
 
 #ifdef PMALSA
   #include "pmlinuxalsa.h"
diff --git a/pm_linux/pmlinuxalsa.c b/pm_linux/pmlinuxalsa.c
index 8e85cfe..454291f 100755
--- a/pm_linux/pmlinuxalsa.c
+++ b/pm_linux/pmlinuxalsa.c
@@ -201,7 +201,7 @@ static PmError alsa_write_byte(PmInternal *midi, unsigned char byte,
             /* compute relative time of event = timestamp - now + latency */
             PmTimestamp now = (midi->time_proc ? 
                                midi->time_proc(midi->time_info) : 
-                               Pt_Time(NULL));
+                               Pt_Time());
             int when = timestamp;
             /* if timestamp is zero, send immediately */
             /* otherwise compute time delay and use delay if positive */