- unified snd_pcm_hw_params_* functions

- added backward compatibility for older non-compatible functions
- added --with-compat-rc3 to configure script to build library
  backwards compatible with 0.9.0rc3
- added symbol versioning like libc.so.6
  - ALSA_0.9      - alsa base
  - ALSA_0.9.0rc4 - first set of new functions (snd_pcm_hw_params_*)

include/alsa-symbols.h

@@ -0,0 +1,41 @@
+/*
+ *  ALSA lib - dynamic symbol versions
+ *  Copyright (c) 2002 by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ *   This library is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Lesser General Public License as
+ *   published by the Free Software Foundation; either version 2.1 of
+ *   the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public
+ *   License along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __ALSA_SYMBOLS_H
+#define __ALSA_SYMBOLS_H
+
+#if defined(PIC) && defined(VERSIONED_SYMBOLS) /* might be also configurable */
+#define USE_VERSIONED_SYMBOLS
+#endif
+
+#ifdef USE_VERSIONED_SYMBOLS
+#define INTERNAL_CONCAT2_2(Pre, Post) Pre##Post
+#define INTERNAL(Name) INTERNAL_CONCAT2_2(__, Name)
+#else
+#define INTERNAL(Name) Name
+#endif
+
+#define symbol_version(real, name, version) \
+	__asm__ (".symver " #real "," #name "@" #version)
+#define default_symbol_version(real, name, version) \
+	__asm__ (".symver " #real "," #name "@@" #version)
+
+#endif /* __ALSA_SYMBOLS_H */