Add and apply autotools.patch to fix all autotools warnings for portsmf.

lib-src/audacity-patches.txt

@@ -207,7 +207,7 @@ portsmf
 http://portmedia.sourceforge.net/
 Cross-platform Midi file reader and writer (succeeded and obsoltes allegro)
 Version in Audacity SVN: SVN snapshot from 227
-Patches: none
+Patches: autotools.patch: Fix all autotools warnings.
 Upstream Version: SVN revision 227
 
 portburn

lib-src/portsmf/autotools.patch

@@ -0,0 +1,21 @@
+Index: configure.ac
+===================================================================
+--- configure.ac	(revision 12817)
++++ configure.ac	(working copy)
+@@ -28,7 +28,7 @@
+ AM_INIT_AUTOMAKE([-Wall foreign])
+ dnl Audacity policy: don't enable automatic rebuild of configure et al if 
+ dnl sources change
+-AM_MAINTAINER_MODE([enabled])
++AM_MAINTAINER_MODE
+ 
+ dnl -------------------------------------------------------
+ dnl Checks for programs.
+@@ -42,6 +42,7 @@
+ AC_LANG([C++])
+ AC_PROG_CXX
+ AC_PROG_CXXCPP
++AM_PROG_AR
+ CFLAGS="$cflags_save"
+ CPPFLAGS="$cppflags_save"
+ CXXFLAGS="$cxxflags_save"

lib-src/portsmf/configure.ac

@@ -28,7 +28,7 @@ dnl set up automake
 AM_INIT_AUTOMAKE([-Wall foreign])
 dnl Audacity policy: don't enable automatic rebuild of configure et al if 
 dnl sources change
-AM_MAINTAINER_MODE([enabled])
+AM_MAINTAINER_MODE
 
 dnl -------------------------------------------------------
 dnl Checks for programs.
@@ -42,6 +42,7 @@ AC_PROG_CC
 AC_LANG([C++])
 AC_PROG_CXX
 AC_PROG_CXXCPP
+AM_PROG_AR
 CFLAGS="$cflags_save"
 CPPFLAGS="$cppflags_save"
 CXXFLAGS="$cxxflags_save"