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