Moved database builder into a separate directory, and gave it its' own Makefile. Now it compiles cleanly and builds a database if ran in root of music tree.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19448 a1c6a512-1295-4272-9138-f99709370657

tools/database/database.c

@@ -0,0 +1,49 @@
+/* A _very_ skeleton file to demonstrate building tagcache db on host. */
+
+#include <stdio.h>
+#include "tagcache.h"
+
+int main(int argc, char **argv)
+{
+    tagcache_init();
+    tagcache_build(".");
+    tagcache_reverse_scan();
+    
+    return 0;
+}
+
+/* stub to avoid including all of apps/misc.c */
+bool file_exists(const char *file)
+{
+    if (!stat(file))
+        return true;
+    return false;
+}
+
+/* stubs to avoid including thread-sdl.c */
+#include "kernel.h"
+void mutex_init(struct mutex *m)
+{
+    (void)m;
+}   
+
+void mutex_lock(struct mutex *m)
+{
+    (void)m;
+}   
+
+void mutex_unlock(struct mutex *m)
+{
+    (void)m;
+}   
+
+void thread_sdl_thread_lock(void *me)
+{
+    (void)me;
+}   
+
+void * thread_sdl_thread_unlock(void)
+{
+    return (void*)1;
+}   
+