Minor bug fixes for EXPERIMENTAL_MIDI_OUT. Also added files for autoconf/automake to portmidi and libscorealign. I also modified my local build-related files in src and lib-src to handle EXPERIMENTAL_MIDI_OUT and EXPERIMENTAL_SCOREALIGN, but while I can build with these options, the build-related files are not entirely working, so I will not commit them and break the "normal" builds. I suspect these new build files in this commit are not entirely correct -- some review is in order.

lib-src/portmidi/pm_linux/README_LINUX.txt

@@ -2,6 +2,16 @@ README_LINUX.txt for PortMidi
 Roger Dannenberg
 14 Oct 2009
 
+Contents:
+        To make PortMidi
+        The pmdefaults program
+        Setting LD_LIBRARY_PATH
+        A note about amd64
+        Using autoconf
+        Using configure
+        Changelog
+
+
 To make PortMidi, you need cmake and the Java SDK.
 Go back up to the portmidi directory and type:
 
@@ -88,6 +98,43 @@ http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=3
 On certain architectures (AMD64 amongst them), shared libraries *must* 
 be "PIC-enabled".
 
+USING AUTOCONF
+
+Audacity (the audio editor ) uses an autoconf-based build system, and 
+the files are also included in the PortMidi download. The associated
+files are tested only in the context of building Audacity, but if you
+really prefer autoconf to cmake or want to include portmidi in another
+autoconf-based project (like Audacity), maybe this will be useful.
+
+The files are: configure.ac, portmidi-uninstalled.pc.in, portmidi.pc.in,
+    and everything in autotools/.
+
+To build from these files, run aclocal, which will produce
+    aclocal.m4 and autom4te.cache
+
+Run autoconf, which will produce
+    configure
+
+Run automake, which will produce
+    Makefile.in
+
+Now that you have a configure and Makefile.in, 
+continue with the next section.
+
+
+USING CONFIGURE
+
+Run ./configure to produce:
+    config.status
+    Makefile
+    portmidi.pc
+    portmidi-uninstalled.pc
+
+
+Finally, run make to create
+    
+
+
 CHANGELOG
 
 22-jan-2010 Roger B. Dannenberg

lib-src/portmidi/pm_linux/finddefault.c

@@ -5,7 +5,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <ctype.h>
 #include "portmidi.h"
+#include "pmutil.h"
+#include "pminternal.h"
 
 #define STRING_MAX 256
 
@@ -27,7 +30,7 @@ int match_string(FILE *inf, char *s)
 
 
 /* 
-/* Parse preference files, find default device, search devices --
+ * Parse preference files, find default device, search devices --
  */
 PmDeviceID find_default_device(char *path, int input, PmDeviceID id)
 /* path -- the name of the preference we are searching for
@@ -80,7 +83,7 @@ PmDeviceID find_default_device(char *path, int input, PmDeviceID id)
             pref_str[i] = c;
         }
         if (i == STRING_MAX) continue; // value too long, ignore
-        pref_str[i] == 0;
+        pref_str[i] = 0;
         i = pm_find_default_device(pref_str, input);
         if (i != pmNoDevice) {
             id = i;

lib-src/portmidi/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 */
@@ -242,8 +242,8 @@ static PmError alsa_out_close(PmInternal *midi)
     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 @@ static PmError alsa_in_close(PmInternal *midi)
 {
     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);

lib-src/portmidi/pm_linux/pmlinuxalsa.h

@@ -3,4 +3,5 @@
 PmError pm_linuxalsa_init(void);
 void pm_linuxalsa_term(void);
 
+PmDeviceID find_default_device(char *path, int input, PmDeviceID id);