r8307: try to cope with flex and bison not being installed, in a similar fashion to yapp for pidl

if they are installed, then we rebuild the generated files, otherwise
we use the ones in svn
(This used to be commit 6ab503b7cc902b8691dc80907bb44f1f705ab8ee)

source4/heimdal/lib/asn1/parse.h

@@ -0,0 +1,115 @@
+/* A Bison parser, made by GNU Bison 1.875d.  */
+
+/* Skeleton parser for Yacc-like parsing with Bison,
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, when this file is copied by Bison into a
+   Bison output file, you may use that output file without restriction.
+   This special exception was added by the Free Software Foundation
+   in version 1.24 of Bison.  */
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     INTEGER = 258,
+     SEQUENCE = 259,
+     CHOICE = 260,
+     OF = 261,
+     OCTET = 262,
+     STRING = 263,
+     GeneralizedTime = 264,
+     GeneralString = 265,
+     BIT = 266,
+     APPLICATION = 267,
+     OPTIONAL = 268,
+     EEQUAL = 269,
+     TBEGIN = 270,
+     END = 271,
+     DEFINITIONS = 272,
+     ENUMERATED = 273,
+     UTF8String = 274,
+     NULLTYPE = 275,
+     EXTERNAL = 276,
+     DEFAULT = 277,
+     DOTDOT = 278,
+     DOTDOTDOT = 279,
+     BOOLEAN = 280,
+     IMPORTS = 281,
+     FROM = 282,
+     OBJECT = 283,
+     IDENTIFIER = 284,
+     IDENT = 285,
+     CONSTANT = 286
+   };
+#endif
+#define INTEGER 258
+#define SEQUENCE 259
+#define CHOICE 260
+#define OF 261
+#define OCTET 262
+#define STRING 263
+#define GeneralizedTime 264
+#define GeneralString 265
+#define BIT 266
+#define APPLICATION 267
+#define OPTIONAL 268
+#define EEQUAL 269
+#define TBEGIN 270
+#define END 271
+#define DEFINITIONS 272
+#define ENUMERATED 273
+#define UTF8String 274
+#define NULLTYPE 275
+#define EXTERNAL 276
+#define DEFAULT 277
+#define DOTDOT 278
+#define DOTDOTDOT 279
+#define BOOLEAN 280
+#define IMPORTS 281
+#define FROM 282
+#define OBJECT 283
+#define IDENTIFIER 284
+#define IDENT 285
+#define CONSTANT 286
+
+
+
+
+#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+#line 56 "parse.y"
+typedef union YYSTYPE {
+  int constant;
+  char *name;
+  Type *type;
+  Member *member;
+  char *defval;
+} YYSTYPE;
+/* Line 1285 of yacc.c.  */
+#line 107 "parse.h"
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+extern YYSTYPE yylval;
+
+
+

source4/heimdal/lib/com_err/parse.h

@@ -0,0 +1,70 @@
+/* A Bison parser, made by GNU Bison 1.875d.  */
+
+/* Skeleton parser for Yacc-like parsing with Bison,
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, when this file is copied by Bison into a
+   Bison output file, you may use that output file without restriction.
+   This special exception was added by the Free Software Foundation
+   in version 1.24 of Bison.  */
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     ET = 258,
+     INDEX = 259,
+     PREFIX = 260,
+     EC = 261,
+     ID = 262,
+     END = 263,
+     STRING = 264,
+     NUMBER = 265
+   };
+#endif
+#define ET 258
+#define INDEX 259
+#define PREFIX 260
+#define EC 261
+#define ID 262
+#define END 263
+#define STRING 264
+#define NUMBER 265
+
+
+
+
+#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+#line 53 "parse.y"
+typedef union YYSTYPE {
+  char *string;
+  int number;
+} YYSTYPE;
+/* Line 1285 of yacc.c.  */
+#line 62 "parse.h"
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+extern YYSTYPE yylval;
+
+
+

source4/heimdal_build/build_external.sh

@@ -42,8 +42,10 @@ build_lex() {
     file=`basename $f`
     base=`basename $f .l`
     echo Building $f
-    cd $dir && $FLEX $file
-    sed '/^#/ s|$base.yy\.c|$base.c|' $base.yy.c > $base.c
+    if cd $dir && $FLEX $file; then
+	sed '/^#/ s|$base.yy\.c|$base.c|' $base.yy.c > $base.c
+	rm -f $base.yy.c
+    fi
     cd $TOP || exit 1
 }
 
@@ -53,9 +55,11 @@ build_bison() {
     file=`basename $f`
     base=`basename $f .y`
     echo Building $f
-    cd $dir && $BISON -y -d $file
-    sed -e "/^#/!b" -e "s|y\.tab\.h|$base.h|" y.tab.h > $base.h
-    sed '/^#/ s|y\.tab\.c|$base.c|' y.tab.c > $base.c
+    if cd $dir && $BISON -y -d $file; then
+	sed -e "/^#/!b" -e "s|y\.tab\.h|$base.h|" y.tab.h > $base.h
+	sed '/^#/ s|y\.tab\.c|$base.c|' y.tab.c > $base.c
+	rm -f y.tab.c y.tab.h
+    fi
     cd $TOP || exit 1
 }