Should compile on Linux.

linux/alsa/JackAlsaDriver.cpp

@@ -94,7 +94,7 @@ void JackAlsaDriver::UpdateLatencies()
 int JackAlsaDriver::Attach()
 {
     JackPort* port;
-    int port_index;
+    jack_port_id_t port_index;
     unsigned long port_flags = (unsigned long)CaptureDriverFlags;
     char name[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
     char alias[JACK_CLIENT_NAME_SIZE + JACK_PORT_NAME_SIZE];
@@ -116,7 +116,7 @@ int JackAlsaDriver::Attach()
     for (int i = 0; i < fCaptureChannels; i++) {
         snprintf(alias, sizeof(alias) - 1, "%s:%s:out%d", fAliasName, fCaptureDriverName, i + 1);
         snprintf(name, sizeof(name) - 1, "%s:capture_%d", fClientControl.fName, i + 1);
-        if if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
+        if (fEngine->PortRegister(fClientControl.fRefNum, name, JACK_DEFAULT_AUDIO_TYPE, (JackPortFlags)port_flags, fEngineControl->fBufferSize, &port_index) < 0) {
             jack_error("driver: cannot register port for %s", name);
             return -1;
         }

linux/firewire/JackFFADODriver.cpp

@@ -346,7 +346,7 @@ JackFFADODriver::ffado_driver_delete (ffado_driver_t *driver)
 int JackFFADODriver::Attach()
 {
     JackPort* port;
-    int port_index;
+    jack_port_id_t port_index;
     char buf[JACK_PORT_NAME_SIZE];
     char portname[JACK_PORT_NAME_SIZE];
     jack_latency_range_t range;

linux/freebob/JackFreebobDriver.cpp

@@ -667,7 +667,7 @@ JackFreebobDriver::freebob_driver_midi_finish (freebob_driver_midi_handle_t *m)
 int JackFreebobDriver::Attach()
 {
     JackPort* port;
-    int port_index;
+    jack_port_id_t port_index;
 
     char buf[JACK_PORT_NAME_SIZE];
     char portname[JACK_PORT_NAME_SIZE];