From: Christos Zoulas <christos@zoulas.com>
Date: Fri, 19 Sep 2008 21:32:38 +0000 (+0000)
Subject: When using flex -P<prefix> instead of ylwrap all the yy symbols get #defined
X-Git-Url: https://git.fsl.cs.stonybrook.edu/?a=commitdiff_plain;h=37b792e3fd7fe08ce27237341ec44bbae1ee77ce;p=am-utils-6.0.git

When using flex -P<prefix> instead of ylwrap all the yy symbols get #defined
to the prefixed ones in the begining of the c file. This breaks the #ifndef
yywrap test. We detect this by checking also yylex and if that is defined
too we declare and define yywrap.
---

diff --git a/amd/conf_tok.l b/amd/conf_tok.l
index dab571f..6cf04de 100644
--- a/amd/conf_tok.l
+++ b/amd/conf_tok.l
@@ -86,9 +86,9 @@ int yylex(void);
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void);
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */
 
 #define TOK_DEBUG 0
 
@@ -184,9 +184,9 @@ NONQUOTE	[^\"]
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void)
 {
   return 1;
 }
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */
diff --git a/amd/sun_map_tok.l b/amd/sun_map_tok.l
index 173f6bd..6c56c97 100644
--- a/amd/sun_map_tok.l
+++ b/amd/sun_map_tok.l
@@ -75,6 +75,9 @@
 # endif /* not ECHO */
 #endif /* FLEX_SCANNER */
 
+int yylex(void);
+int yyerror(const char *);
+
 /*
  * We need to configure lex to parse from a string
  * instead of a file. Each version of lex has it's
@@ -124,9 +127,9 @@ int sun_map_input(char *buff, int maxsize);
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void);
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */
 
 /* no need to use yywrap() */
 #define YY_SKIP_YYWRAP
@@ -226,9 +229,9 @@ sun_map_tok_setbuff(const char* buff)
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void)
 {
   return 1;
 }
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */
diff --git a/fsinfo/fsi_lex.l b/fsinfo/fsi_lex.l
index 044a102..cc5d948 100644
--- a/fsinfo/fsi_lex.l
+++ b/fsinfo/fsi_lex.l
@@ -111,9 +111,9 @@ static int ayylineno;
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void);
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */
 
 int yyerror(const char *, ...);
 
@@ -268,9 +268,9 @@ current_location(void)
  * which automatically generates yywrap macros and symbols.  So I must
  * distinguish between them and when yywrap is actually needed.
  */
-#ifndef yywrap
+#if !defined(yywrap) || defined(yylex)
 int yywrap(void)
 {
   return 1;
 }
-#endif /* not yywrap */
+#endif /* not yywrap or yylex */