Merge BuDDy 2.3.

* examples/calculator/, examples/internal/: Were renamed as ...
* examples/bddcalc/, examples/bddtest/: ... these.
* configure.ac: Adjust version and output Makefiles.
* examples/Makefile.am (SUBDIRS): Adjust subdir renaming.
* examples/cmilner/milner.c, examples/fdd/statespace.cxx: Were
renamed as ...
* examples/cmilner/cmilner.c, examples/fdd/fdd.cxx: ... these.
* examples/cmilner/Makefile.am, examples/fdd/Makefile.am: Adjust
accordingly.
* src/Makefile.am (AM_CPPFLAGS): Define VERSION.

buddy/examples/bddcalc/parser_.h

@@ -0,0 +1,44 @@
+/*************************************************************************
+  FILE:  parser.h
+  DESCR: parser defs. for BDD calculator
+  AUTH:  Jorn Lind
+  DATE:  (C) may 1999
+*************************************************************************/
+
+#ifndef _PARSER_H
+#define _PARSER_H
+
+#include <stdio.h>
+#include "bdd.h"
+
+#define MAXIDLEN 32  /* Max. number of allowed characters in an identifier */
+
+struct token         /* BISON token data */
+{
+   char id[MAXIDLEN+1];
+   char *str;
+   int ival;
+   bdd *bval;
+};
+
+#define YYSTYPE token
+#define YY_SKIP_YYWRAP
+#define YY_NO_UNPUT
+#define yywrap() (1)
+
+extern YYSTYPE yylval;            /* Declare for flex user */
+extern void yyerror(char *,...);  /* Declare for flex and bison */
+extern FILE *yyin;
+extern int yylex(void);           /* Declare for bison */
+extern int yyparse(void);         /* Declare for bison user */
+extern int linenum;               /* Declare for error handler */
+
+   /* Use this instead of strdup() to avoid malloc() */
+inline char *sdup(const char *s) 
+{
+   return strcpy(new char[strlen(s)+1], s);
+}
+
+#endif /* _PARSER_H */
+
+/* EOF */