Hello Sir, I'll tell you clearly, our project is to add new C99 features to GCC. We have to add our codes to the current GCC and We are trying to build the GCC codes. We got some idea of where to add our codes. now the problem is after we add our codes we are not getting errors but the symbol table is not getting created. we want the symbol table to print to a file or a stream. we added the following code in c-parse.c //line 2139 YMPRINTF(Title, Token, Value, Location) \ do { \ if (yydebug) \ { \ /*FILE *FP; */ \ /*FP=fopen("symtab.txt","w"); */ \ /*YYFPRINTF(FP,"%s",Title); */\ YYFPRINTF (stderr, "%s ", Title); printf("%s ",Title); \ printf("%d ",Token);\ symcopy (Title);\ yysymprint (stderr, \ Token, Value); \ YYFPRINTF (stderr, "\n"); printf("\n"); \ symcopy("\n"); \ } \ } while (0) line 2285 static void symcopy(text) char *text; { FILE *FP; FP=fopen("/root/GCC/symtab.txt","a"); YYFPRINTF(FP,"%s",text); } Can you suggest any solution ???? Thanks, karthik -- View this message in context: http://www.nabble.com/Help-needed-to-modify-GCC%21-tp16410995p16410995.html Sent from the gcc - Help mailing list archive at Nabble.com.