flex cleanup, silence errors

On the poudriere jail build, it was impossible to build world due to
flex errors.  I don't know what is different about the environments --
perhaps one has -Werror and the other doesn't.

In any case, the new flex makes a lot of complaints due to internally
generated functions, etc, and this cleans them all up at once.

diff --git a/contrib/libpcap/scanner.l b/contrib/libpcap/scanner.l
index 064e9c8..f5c23a4 100644 (file)
--- a/contrib/libpcap/scanner.l
+++ b/contrib/libpcap/scanner.l
@@ -77,8 +77,6 @@ static int stoi(char *);
 static inline int xdtoi(int);
 
 #ifdef FLEX_SCANNER
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
 static YY_BUFFER_STATE in_buffer;
 #else
 static const char *in_buffer;
@@ -185,6 +183,8 @@ V6          ({V680}|{V670}|{V671}|{V672}|{V673}|{V674}|{V675}|{V676}|{V677}|{V660}|{V661
 MAC            ({B}:{B}:{B}:{B}:{B}:{B}|{B}\-{B}\-{B}\-{B}\-{B}\-{B}|{B}\.{B}\.{B}\.{B}\.{B}\.{B}|{B2}\.{B2}\.{B2}|{B2}{3})
 
 
+%option nounput
+%option noinput
 
 %%
 dst            return DST;

diff --git a/libexec/dma/aliases_scan.l b/libexec/dma/aliases_scan.l
index 809d1e1..b8dc682 100644 (file)
--- a/libexec/dma/aliases_scan.l
+++ b/libexec/dma/aliases_scan.l
@@ -1,14 +1,13 @@
 %{
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <string.h>
 #include "aliases_parse.h"
 
-#define YY_NO_INPUT
-
-int yylex(void);
 %}
 
 %option yylineno
+%option noinput
 %option nounput
 
 %%

diff --git a/sbin/devd/token.l b/sbin/devd/token.l
index 5a2e237..074f92f 100644 (file)
--- a/sbin/devd/token.l
+++ b/sbin/devd/token.l
@@ -29,6 +29,7 @@
  * $FreeBSD: src/sbin/devd/token.l,v 1.7 2008/03/21 20:38:28 imp Exp $
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
@@ -37,8 +38,6 @@
 #include "y.tab.h"
 
 int lineno = 1;
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
 
 static void
 update_lineno(const char *cp)
@@ -50,6 +49,9 @@ update_lineno(const char *cp)
 
 %}
 
+%option nounput
+%option noinput
+
 %%
 
 [ \t]+                 ;

diff --git a/usr.bin/bc/scan.l b/usr.bin/bc/scan.l
index 15c84e0..9c59a52 100644 (file)
--- a/usr.bin/bc/scan.l
+++ b/usr.bin/bc/scan.l
@@ -19,6 +19,7 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <err.h>
 #include <errno.h>
 #include <histedit.h>
@@ -31,8 +32,6 @@
 #include "pathnames.h"
 #include "y.tab.h"
 
-#define YY_NO_INPUT
-
 int            lineno;
 bool           interactive;
 
@@ -55,6 +54,7 @@ static int    bc_yyinput(char *, int);
 %}
 
 %option always-interactive
+%option noinput
 
 DIGIT          [0-9A-F]
 ALPHA          [a-z_]

diff --git a/usr.bin/colldef/Makefile b/usr.bin/colldef/Makefile
index 291a0ac..cc70a0f 100644 (file)
--- a/usr.bin/colldef/Makefile
+++ b/usr.bin/colldef/Makefile
@@ -1,11 +1,10 @@
 # $FreeBSD: src/usr.bin/colldef/Makefile,v 1.16.2.1 2002/08/17 18:57:10 ache Exp $
-# $DragonFly: src/usr.bin/colldef/Makefile,v 1.4 2007/08/27 16:50:52 pavalos Exp $
 
 PROG=  colldef
 SRCS=  parse.y scan.l y.tab.h
 LFLAGS=        -8 -i
 CFLAGS+=-I. -I${.CURDIR}
-CFLAGS+=-DCOLLATE_DEBUG -DYY_NO_UNPUT
+CFLAGS+=-DCOLLATE_DEBUG
 LDADD= -ll
 DPADD= ${LIBL}
 

diff --git a/usr.bin/colldef/scan.l b/usr.bin/colldef/scan.l
index a12e56b..51926af 100644 (file)
--- a/usr.bin/colldef/scan.l
+++ b/usr.bin/colldef/scan.l
@@ -27,7 +27,6 @@
  * SUCH DAMAGE.
  *
  * $FreeBSD: src/usr.bin/colldef/scan.l,v 1.11.2.2 2002/10/11 10:43:45 ache Exp $
- * $DragonFly: src/usr.bin/colldef/scan.l,v 1.4 2008/10/16 01:52:32 swildner Exp $
  */
 
 #include <ctype.h>
@@ -39,7 +38,7 @@
 #include "common.h"
 #include "y.tab.h"
 
-#define YY_NO_INPUT
+#pragma GCC diagnostic ignored "-Wsign-compare"
 
 int line_no = 1, save_no, fromsubs;
 static u_char buffer[BUFSIZE], *buf_ptr;
@@ -48,9 +47,10 @@ YY_BUFFER_STATE main_buf, map_buf;
 #ifdef FLEX_DEBUG
 YYSTYPE yylval;
 #endif /* FLEX_DEBUG */
-int yylex(void);
 
 %}
+%option noinput
+%option nounput
 %%
 <INITIAL,charmap,nchar,subs,subs2>[ \t]+      ;
 <subs2>\"               { buf_ptr = buffer; BEGIN(string); }

diff --git a/usr.bin/flex/Makefile b/usr.bin/flex/Makefile
index a4211bf..0dacb85 100644 (file)
--- a/usr.bin/flex/Makefile
+++ b/usr.bin/flex/Makefile
@@ -24,7 +24,7 @@ SUBDIR=               lib
 CFLAGS+=       -I${CONTRIBDIR} -I${.OBJDIR} -I${.CURDIR}
 CFLAGS+=       -DHAVE_CONFIG_H
 
-WARNS?=        2
+WARNS?=        1
 
 # verbatim from vendor makefile
 flex_SOURCES = \

diff --git a/usr.bin/m4/tokenizer.l b/usr.bin/m4/tokenizer.l
index 034d1f7..a32cfca 100644 (file)
--- a/usr.bin/m4/tokenizer.l
+++ b/usr.bin/m4/tokenizer.l
@@ -18,6 +18,7 @@
  *
  * $FreeBSD: src/usr.bin/m4/tokenizer.l,v 1.3 2012/11/17 01:54:24 svnexp Exp $
  */
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include "parser.h"
 #include <assert.h>
 #include <stdlib.h>
@@ -30,7 +31,6 @@ extern int32_t yylval;
 
 int32_t number(void);
 int32_t parse_radix(void);
-extern int yylex(void);
 %}
 
 delim  [ \t\n]

diff --git a/usr.bin/mkcsmapper/ldef.h b/usr.bin/mkcsmapper/ldef.h
index cfec373..efe1ad1 100644 (file)
--- a/usr.bin/mkcsmapper/ldef.h
+++ b/usr.bin/mkcsmapper/ldef.h
@@ -1,5 +1,4 @@
 /*     $NetBSD: ldef.h,v 1.2 2006/09/09 14:35:17 tnozaki Exp $ */
-/*     $DragonFly: src/usr.bin/mkcsmapper/ldef.h,v 1.2 2008/04/10 10:21:13 hasso Exp $ */
 
 /*-
  * Copyright (c)2003, 2006 Citrus Project,
@@ -33,9 +32,8 @@ typedef struct {
        uint32_t        width;
 } linear_zone_t;
 
-extern int     line_number;
+extern int     aline_number;
 extern int     debug;
 
 int    yyparse(void);
-int    yylex(void);
 int    yyerror(const char *);

diff --git a/usr.bin/mkcsmapper/lex.l b/usr.bin/mkcsmapper/lex.l
index 958a9c3..d508e32 100644 (file)
--- a/usr.bin/mkcsmapper/lex.l
+++ b/usr.bin/mkcsmapper/lex.l
@@ -27,6 +27,7 @@
  * SUCH DAMAGE.
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <machine/endian.h>
 #include <assert.h>
 #include <errno.h>
@@ -38,22 +39,22 @@
 #include "ldef.h"
 #include "yacc.h"
 
-#define        YY_NO_INPUT
-#define        YY_NO_UNPUT
-
-int line_number = 1;
+int aline_number = 1;
 %}
 
+%option noinput
+%option nounput
+
 %x     COMMENT
 
 %%
 
 [ \t]+ { }
-#.*[\n]|"//".*[\n]|[\n]        { line_number++; return (R_LN); }
+#.*[\n]|"//".*[\n]|[\n]        { aline_number++; return (R_LN); }
 
 "/*"           { BEGIN COMMENT; }
 <COMMENT>"*/"  { BEGIN 0; }
-<COMMENT>[\n]  { line_number++; }
+<COMMENT>[\n]  { aline_number++; }
 <COMMENT>.     { }
 <COMMENT><<EOF>>       {
                yyerror("unexpected file end (unterminate comment)\n");

diff --git a/usr.bin/mkcsmapper/yacc.y b/usr.bin/mkcsmapper/yacc.y
index 53bf356..cb6718e 100644 (file)
--- a/usr.bin/mkcsmapper/yacc.y
+++ b/usr.bin/mkcsmapper/yacc.y
@@ -1,5 +1,4 @@
 /*     $NetBSD: yacc.y,v 1.7 2006/09/09 14:35:17 tnozaki Exp $ */
-/*     $DragonFly: src/usr.bin/mkcsmapper/yacc.y,v 1.3 2008/07/10 18:29:51 swildner Exp $      */
 
 %{
 /*-
@@ -93,6 +92,8 @@ static void   put16(void *, size_t, u_int32_t);
 static void    put32(void *, size_t, u_int32_t);
 static void    set_range(u_int32_t, u_int32_t);
 static void    set_src(linear_zone_t *, u_int32_t, u_int32_t);
+
+int yylex (void);
 %}
 
 %union {
@@ -198,7 +199,7 @@ lns         : R_LN
 static void
 warning(const char *s)
 {
-       fprintf(stderr, "%s in %d\n", s, line_number);
+       fprintf(stderr, "%s in %d\n", s, aline_number);
 }
 
 int

diff --git a/usr.bin/mkesdb/ldef.h b/usr.bin/mkesdb/ldef.h
index 96f30a6..fa53277 100644 (file)
--- a/usr.bin/mkesdb/ldef.h
+++ b/usr.bin/mkesdb/ldef.h
@@ -1,5 +1,4 @@
 /*     $NetBSD: src/usr.bin/mkesdb/ldef.h,v 1.1 2003/06/26 06:30:17 tshiozak Exp $     */
-/*     $DragonFly: src/usr.bin/mkesdb/ldef.h,v 1.2 2005/05/06 13:16:08 corecode Exp $ */
 
 /*-
  * Copyright (c)2003 Citrus Project,
@@ -27,10 +26,9 @@
  * SUCH DAMAGE.
  */
 
-extern int     line_number;
+extern int     aline_number;
 
 int    yyparse(void);
-int    yylex(void);
 int    yyerror(const char *);
 
 struct named_csid {

diff --git a/usr.bin/mkesdb/lex.l b/usr.bin/mkesdb/lex.l
index 49892a2..f2e54b3 100644 (file)
--- a/usr.bin/mkesdb/lex.l
+++ b/usr.bin/mkesdb/lex.l
@@ -27,6 +27,7 @@
  * SUCH DAMAGE.
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <sys/endian.h>
 #include <sys/queue.h>
 #include <assert.h>
@@ -39,22 +40,22 @@
 #include "ldef.h"
 #include "yacc.h"
 
-#define        YY_NO_INPUT
-#define        YY_NO_UNPUT
-
-int line_number = 1;
+int aline_number = 1;
 %}
 
+%option noinput
+%option nounput
+
 %x     COMMENT
 
 %%
 
 [ \t]+ { }
-#.*[\n]|"//".*[\n]|[\n]        { line_number++; return (R_LN); }
+#.*[\n]|"//".*[\n]|[\n]        { aline_number++; return (R_LN); }
 
 "/*"           { BEGIN COMMENT; }
 <COMMENT>"*/"  { BEGIN 0; }
-<COMMENT>[\n]  { line_number++; }
+<COMMENT>[\n]  { aline_number++; }
 <COMMENT>.     { }
 <COMMENT><<EOF>>       {
                yyerror("unexpected file end (unterminate comment)\n");

diff --git a/usr.bin/mkesdb/yacc.y b/usr.bin/mkesdb/yacc.y
index 8d85ab5..5af12dc 100644 (file)
--- a/usr.bin/mkesdb/yacc.y
+++ b/usr.bin/mkesdb/yacc.y
@@ -1,5 +1,4 @@
 /*     $NetBSD: src/usr.bin/mkesdb/yacc.y,v 1.3 2004/01/02 12:09:48 itojun Exp $       */
-/*     $DragonFly: src/usr.bin/mkesdb/yacc.y,v 1.2 2008/07/10 18:29:51 swildner Exp $ */
 
 %{
 /*-
@@ -62,6 +61,8 @@ static void   dump_file(void);
 static void    register_named_csid(char *, uint32_t);
 static void    set_prop_string(const char *, char **, char **);
 static void    set_invalid(uint32_t);
+
+int yylex (void);
 %}
 %union {
        uint32_t        i_value;
@@ -113,7 +114,7 @@ invalid             : R_INVALID L_IMM
 int
 yyerror(const char *s)
 {
-       fprintf(stderr, "%s in %d\n", s, line_number);
+       fprintf(stderr, "%s in %d\n", s, aline_number);
 
        return (0);
 }

diff --git a/usr.bin/mklocale/lex.l b/usr.bin/mklocale/lex.l
index c535eb8..403bccc 100644 (file)
--- a/usr.bin/mklocale/lex.l
+++ b/usr.bin/mklocale/lex.l
@@ -1,5 +1,4 @@
 /*     $NetBSD: src/usr.bin/mklocale/lex.l,v 1.13 2003/10/27 00:12:43 lukem Exp $      */
-/*     $DragonFly: src/usr.bin/mklocale/lex.l,v 1.7 2008/06/21 20:01:14 swildner Exp $ */
 
 %{
 /*-
@@ -34,6 +33,7 @@
  * SUCH DAMAGE.
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -42,7 +42,6 @@
 #include "ldef.h"
 #include "yacc.h"
 
-int yylex(void);
 %}
 
 ODIGIT [0-7]

diff --git a/usr.sbin/apmd/apmdlex.l b/usr.sbin/apmd/apmdlex.l
index ff20317..050f3e9 100644 (file)
--- a/usr.sbin/apmd/apmdlex.l
+++ b/usr.sbin/apmd/apmdlex.l
@@ -30,20 +30,20 @@
  * $FreeBSD: src/usr.sbin/apmd/apmdlex.l,v 1.2.2.1 2001/08/13 17:30:30 nsayer Exp $
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <string.h>
 #include <syslog.h>
 #include <bitstring.h>
 #include "apmd.h"
 #include "y.tab.h"
 
-/* We don't need them, avoid the warnings. */
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
-
 int lineno;
 int first_time;
 %}
 
+%option noinput
+%option nounput
+
 %s TOP
 
 %%

diff --git a/usr.sbin/bthcid/lexer.l b/usr.sbin/bthcid/lexer.l
index 9001f17..73d6b7d 100644 (file)
--- a/usr.sbin/bthcid/lexer.l
+++ b/usr.sbin/bthcid/lexer.l
@@ -30,15 +30,14 @@
  * $FreeBSD: src/usr.sbin/bluetooth/hcsecd/lexer.l,v 1.1 2003/05/10 21:50:35 julian Exp $
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <string.h>
 #include "parser.h"
 
-#define YY_NO_INPUT
-
-int yylex(void);
 %}
 
 %option yylineno noyywrap nounput
+%option noinput
 
 delim          [ \t\n]
 ws             {delim}+

diff --git a/usr.sbin/config/config.h b/usr.sbin/config/config.h
index defe52a..aaab9ea 100644 (file)
--- a/usr.sbin/config/config.h
+++ b/usr.sbin/config/config.h
@@ -151,7 +151,6 @@ void        moveifchanged(const char *, const char *);
 void   init_dev(struct device *);       
 void   newbus_ioconf(void);
 int    yyparse(void);
-int    yylex(void);
 void   options(void);
 void   makefile(void);
 void   headers(void);

diff --git a/usr.sbin/config/config.y b/usr.sbin/config/config.y
index 4f950bd..4146375 100644 (file)
--- a/usr.sbin/config/config.y
+++ b/usr.sbin/config/config.y
@@ -104,6 +104,7 @@ int maxusers;
 static int connect(char *, int);
 static void yyerror(const char *s);
 
+int yylex(void);
 
 %}
 %%

diff --git a/usr.sbin/config/lang.l b/usr.sbin/config/lang.l
index baf0189..f9c4424 100644 (file)
--- a/usr.sbin/config/lang.l
+++ b/usr.sbin/config/lang.l
@@ -33,17 +33,14 @@
  *
  *     @(#)lang.l      8.1 (Berkeley) 6/6/93
  * $FreeBSD: src/usr.sbin/config/lang.l,v 1.27 1999/11/09 07:20:22 peter Exp $
- * $DragonFly: src/usr.sbin/config/lang.l,v 1.14 2008/05/01 09:24:42 swildner Exp $
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <ctype.h>
 #include <string.h>
 #include "y.tab.h"
 #include "config.h"
 
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
-
 /*
  * Key word table
  */
@@ -89,6 +86,8 @@ int hex(char *);
 WORD   [A-Za-z_][-A-Za-z_]*
 ID     [A-Za-z_][-A-Za-z_0-9]*
 %START NONUM TOEOL
+%option noinput
+%option nounput
 %%
 <NONUM>{WORD}  {
                        int i;

diff --git a/usr.sbin/kbdcontrol/kbdcontrol.c b/usr.sbin/kbdcontrol/kbdcontrol.c
index e25c45e..536cc3c 100644 (file)
--- a/usr.sbin/kbdcontrol/kbdcontrol.c
+++ b/usr.sbin/kbdcontrol/kbdcontrol.c
@@ -40,6 +40,8 @@
 #include "path.h"
 #include "lex.h"
 
+int yylex(void);
+
 char ctrl_names[32][4] = {
        "nul", "soh", "stx", "etx", "eot", "enq", "ack", "bel",
        "bs ", "ht ", "nl ", "vt ", "ff ", "cr ", "so ", "si ",

diff --git a/usr.sbin/kbdcontrol/lex.h b/usr.sbin/kbdcontrol/lex.h
index d3f95fb..5fc737c 100644 (file)
--- a/usr.sbin/kbdcontrol/lex.h
+++ b/usr.sbin/kbdcontrol/lex.h
@@ -66,5 +66,3 @@
 
 extern int number;
 extern char letter;
-
-extern int yylex(void);

diff --git a/usr.sbin/kbdcontrol/lex.l b/usr.sbin/kbdcontrol/lex.l
index 73db953..07b6f66 100644 (file)
--- a/usr.sbin/kbdcontrol/lex.l
+++ b/usr.sbin/kbdcontrol/lex.l
@@ -29,12 +29,13 @@
  */
 
 %{
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include "lex.h"
-
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
 %}
 
+%option noinput
+%option nounput
+
 D      [0-9]
 X      [0-9a-fA-F]
 A      .

diff --git a/usr.sbin/ndiscvt/inf-token.l b/usr.sbin/ndiscvt/inf-token.l
index 522678c..115eabb 100644 (file)
--- a/usr.sbin/ndiscvt/inf-token.l
+++ b/usr.sbin/ndiscvt/inf-token.l
@@ -33,6 +33,7 @@
  * $FreeBSD: src/usr.sbin/ndiscvt/inf-token.l,v 1.3 2004/01/11 21:10:35 mdodd Exp $
  */
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <regex.h>
 #include <ctype.h>
 #include <err.h>
@@ -42,10 +43,7 @@
 #include "y.tab.h"
 
 int lineno = 1;
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
 
-int yylex(void);
 void yyerror(const char *);
 
 static void
@@ -58,6 +56,9 @@ update_lineno(const char *cp)
 
 %}
 
+%option noinput
+%option nounput
+
 %%
 
 [ \t]+                 ;

diff --git a/usr.sbin/rrenumd/lexer.l b/usr.sbin/rrenumd/lexer.l
index 307b1f6..1df5493 100644 (file)
--- a/usr.sbin/rrenumd/lexer.l
+++ b/usr.sbin/rrenumd/lexer.l
@@ -33,9 +33,8 @@
  */
 
 %{
-#define YY_NO_INPUT
-#define YY_NO_UNPUT
 
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <sys/param.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
@@ -63,9 +62,11 @@ char linebuf[LINEBUF_SIZE];
 
 int parse(FILE **);
 void yyerror(const char *);
-int yylex(void);
 %}
 
+%option noinput
+%option nounput
+
 /* common section */
 nl             \n
 ws             [ \t]+

diff --git a/usr.sbin/setkey/Makefile b/usr.sbin/setkey/Makefile
index af350b5..6ff22fd 100644 (file)
--- a/usr.sbin/setkey/Makefile
+++ b/usr.sbin/setkey/Makefile
@@ -25,7 +25,6 @@
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 # $FreeBSD: src/usr.sbin/setkey/Makefile,v 1.1.2.5 2001/04/25 14:05:11 ru Exp $
-# $DragonFly: src/usr.sbin/setkey/Makefile,v 1.6 2004/11/16 22:04:37 joerg Exp $
 
 PROG=  setkey
 SRCS=  setkey.c parse.y token.l
@@ -44,7 +43,7 @@ CFLAGS+=-I${.CURDIR}/../../lib/libipsec -I${.CURDIR}/../../sys/netkey
 
 SRCS+=y.tab.h
 y.tab.h: parse.y
-CFLAGS+=-DIPSEC_DEBUG -DINET6 -DYY_NO_UNPUT -I.
+CFLAGS+=-DIPSEC_DEBUG -DINET6 -I.
 DPADD+=        ${LIBIPSEC}
 LDADD+=        -lipsec
 CLEANFILES+=   scriptdump y.tab.h

diff --git a/usr.sbin/setkey/token.l b/usr.sbin/setkey/token.l
index 3fbdaa7..c3ce0ea 100644 (file)
--- a/usr.sbin/setkey/token.l
+++ b/usr.sbin/setkey/token.l
@@ -31,6 +31,7 @@
  */
 
 %{
+#pragma GCC diagnostic ignored "-Wsign-compare"
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
@@ -68,8 +69,6 @@
 
 #define PREPROC        DECHO CMDARG
 
-#define YY_NO_INPUT
-
 int lineno = 1;
 char cmdarg[8192]; /* XXX: BUFSIZ is the better ? */
 
@@ -77,7 +76,6 @@ extern u_char m_buf[BUFSIZ];
 extern u_int m_len;
 extern int f_debug;
 
-int yylex(void);
 void yyfatal(const char *s);
 void yyerror(const char *s);
 extern void parse_init(void);
@@ -86,6 +84,9 @@ int yyparse(void);
 
 %}
 
+%option noinput
+%option nounput
+
 /* common section */
 nl             \n
 ws             [ \t]+