Remove sequencer instrument layer

Remove obsoleted sequencer instrument layer from alsa-lib.
The old symbols are compiled in as default as dummy functions
(unless --disable-old-symbols is given to configure) so that
the old binaries can still work more or less.

src/seq/seq_old.c

@@ -0,0 +1,222 @@
+/*
+ * place-holders to keep libasound linkable to old binaries
+ */
+
+#ifndef DOXYGEN
+
+#include "local.h"
+
+size_t snd_instr_header_sizeof(void)
+{
+	return 0;
+}
+
+int snd_instr_header_malloc(void **ptr ATTRIBUTE_UNUSED,
+			    size_t len ATTRIBUTE_UNUSED)
+{
+	return -ENOMEM;
+}
+
+void snd_instr_header_free(void *obj ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_copy(void *dst ATTRIBUTE_UNUSED,
+			   const void *src ATTRIBUTE_UNUSED)
+{
+}
+
+const void *snd_instr_header_get_id(const void *info ATTRIBUTE_UNUSED)
+{
+	return NULL;
+}
+
+int snd_instr_header_get_cluster(const void *info ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+unsigned int snd_instr_header_get_cmd(const void *info ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+size_t snd_instr_header_get_len(const void *info ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+const char *snd_instr_header_get_name(const void *info ATTRIBUTE_UNUSED)
+{
+	return NULL;
+}
+
+int snd_instr_header_get_type(const void *info ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+const char *snd_instr_header_get_format(const void *info ATTRIBUTE_UNUSED)
+{
+	return NULL;
+}
+
+const void *snd_instr_header_get_alias(const void *info ATTRIBUTE_UNUSED)
+{
+	return NULL;
+}
+
+void *snd_instr_header_get_data(const void *info ATTRIBUTE_UNUSED)
+{
+	return NULL;
+}
+
+int snd_instr_header_get_follow_alias(const void *info ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+void snd_instr_header_set_id(void *info ATTRIBUTE_UNUSED,
+			     const void *id ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_cluster(void *info ATTRIBUTE_UNUSED,
+				  int cluster ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_cmd(void *info ATTRIBUTE_UNUSED,
+			      unsigned int cmd ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_len(void *info ATTRIBUTE_UNUSED,
+			      size_t len ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_name(void *info ATTRIBUTE_UNUSED,
+			       const char *name ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_type(void *info ATTRIBUTE_UNUSED,
+			       int type ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_format(void *info ATTRIBUTE_UNUSED,
+				 const char *format ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_alias(void *info ATTRIBUTE_UNUSED,
+				const void *instr ATTRIBUTE_UNUSED)
+{
+}
+
+void snd_instr_header_set_follow_alias(void *info ATTRIBUTE_UNUSED,
+				       int val ATTRIBUTE_UNUSED)
+{
+}
+
+int snd_instr_fm_free(void *fm ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+int snd_instr_fm_convert_to_stream(void *fm ATTRIBUTE_UNUSED,
+				   const char *name ATTRIBUTE_UNUSED,
+				   void **__data ATTRIBUTE_UNUSED,
+				   size_t *__size ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_fm_convert_from_stream(void *__data ATTRIBUTE_UNUSED,
+				     size_t size ATTRIBUTE_UNUSED,
+				     void **simple ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+
+int snd_instr_iwffff_open(void **handle ATTRIBUTE_UNUSED,
+			  const char *name_fff ATTRIBUTE_UNUSED,
+			  const char *name_dat ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_iwffff_open_rom(void **handle ATTRIBUTE_UNUSED,
+			      int card ATTRIBUTE_UNUSED,
+			      int bank ATTRIBUTE_UNUSED,
+			      int file ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_iwffff_open_rom_file(void **handle ATTRIBUTE_UNUSED,
+				   const char *name ATTRIBUTE_UNUSED,
+				   int bank ATTRIBUTE_UNUSED,
+				   int file ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_iwffff_close(void *handle ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+int snd_instr_iwffff_free(void *__instr ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+int snd_instr_iwffff_load(void *iwf ATTRIBUTE_UNUSED,
+			  int bank ATTRIBUTE_UNUSED,
+			  int prg ATTRIBUTE_UNUSED,
+			  void **__iwffff ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_iwffff_convert_to_stream(void *iwffff ATTRIBUTE_UNUSED,
+				       const char *name ATTRIBUTE_UNUSED,
+				       void **__data ATTRIBUTE_UNUSED,
+				       size_t *__size ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_iwffff_convert_from_stream(void *data ATTRIBUTE_UNUSED,
+					 size_t size ATTRIBUTE_UNUSED,
+					 void **iwffff ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+
+int snd_instr_simple_free(void *simple ATTRIBUTE_UNUSED)
+{
+	return 0;
+}
+
+int snd_instr_simple_convert_to_stream(void *simple ATTRIBUTE_UNUSED,
+				       const char *name ATTRIBUTE_UNUSED,
+				       void **__data ATTRIBUTE_UNUSED,
+				       size_t *__size ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+int snd_instr_simple_convert_from_stream(void *__data ATTRIBUTE_UNUSED,
+					 size_t size ATTRIBUTE_UNUSED,
+					 void **simple ATTRIBUTE_UNUSED)
+{
+	return -ENXIO;
+}
+
+#endif /* !DOXYGEN */