fix gcc warning

MathEval/scanner.cpp

@@ -20,7 +20,7 @@
 /* A lexical scanner generated by flex */
 
 /* Scanner skeleton version:
- * $Header: /cvsroot/gmsh/MathEval/scanner.cpp,v 1.6 2005-01-08 20:15:12 geuzaine Exp $
+ * $Header: /cvsroot/gmsh/MathEval/scanner.cpp,v 1.7 2005-03-17 22:45:00 geuzaine Exp $
  */
 
 #define FLEX_SCANNER
@@ -458,6 +458,8 @@ char *yytext;
 #include "parser.h"
 #include "symbol_table.h"
 
+#define YY_ALWAYS_INTERACTIVE 1
+
 /* Redefine macro to redirect scanner input from string instead of
    standard input.  */
 #define YY_INPUT( buffer, result, max_size ) \
@@ -470,7 +472,7 @@ extern char *matheval_input_string; /* String representing function.  */
 /* Read next max_size character from string into buffer.  */
 static int input_from_string (char *buffer, int max_size);
 /* Token definitions.  */
-#line 474 "scanner.cpp"
+#line 476 "scanner.cpp"
 
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
@@ -621,10 +623,10 @@ YY_DECL
 	register char *yy_cp, *yy_bp;
 	register int yy_act;
 
-#line 50 "scanner.l"
+#line 52 "scanner.l"
 
 
-#line 628 "scanner.cpp"
+#line 630 "scanner.cpp"
 
 	if ( yy_init )
 		{
@@ -709,12 +711,12 @@ do_action:	/* This label is used only to access EOF actions. */
 
 case 1:
 YY_RULE_SETUP
-#line 52 "scanner.l"
+#line 54 "scanner.l"
 
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 54 "scanner.l"
+#line 56 "scanner.l"
 {
   /* Create node representing constant with appropriate value.  */
   melval.node = node_create ('c', atof (metext));
@@ -723,7 +725,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 60 "scanner.l"
+#line 62 "scanner.l"
 {
   /* Find symbol table record corresponding to function name.  */
   melval.record = symbol_table_lookup (matheval_symbol_table, metext);
@@ -732,7 +734,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 66 "scanner.l"
+#line 68 "scanner.l"
 {
   Record *record; /* Symbol table record.  */
   /* Inserty variable into symbol table.  */
@@ -743,66 +745,66 @@ YY_RULE_SETUP
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 74 "scanner.l"
+#line 76 "scanner.l"
 {
   return '+';
 }
 	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 78 "scanner.l"
+#line 80 "scanner.l"
 {
   return '-';
 }
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 82 "scanner.l"
+#line 84 "scanner.l"
 {
   return '*';
 }
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 86 "scanner.l"
+#line 88 "scanner.l"
 {
   return '/';
 }
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 90 "scanner.l"
+#line 92 "scanner.l"
 {
   return '^';
 }
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 94 "scanner.l"
+#line 96 "scanner.l"
 {
   return '(';
 }
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 98 "scanner.l"
+#line 100 "scanner.l"
 {
   return ')';
 }
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 102 "scanner.l"
+#line 104 "scanner.l"
 {
   return '\n';
 }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 106 "scanner.l"
+#line 108 "scanner.l"
 ECHO;
 	YY_BREAK
-#line 806 "scanner.cpp"
+#line 808 "scanner.cpp"
 case YY_STATE_EOF(INITIAL):
 	yyterminate();
 
@@ -1688,7 +1690,7 @@ int main()
 	return 0;
 	}
 #endif
-#line 106 "scanner.l"
+#line 108 "scanner.l"
 
 
 #undef mewrap

MathEval/scanner.l

@@ -27,6 +27,8 @@
 #include "parser.h"
 #include "symbol_table.h"
 
+#define YY_ALWAYS_INTERACTIVE 1
+
 /* Redefine macro to redirect scanner input from string instead of
    standard input.  */
 #define YY_INPUT( buffer, result, max_size ) \