server/util_expr_eval.c:621: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned64 by call to `ap_expr_yyparse`.

server/util_expr_eval.c:619:5: Call
617.     ctx.at_start    = 1;
618. 
619.     ap_expr_yylex_init(&ctx.scanner);
         ^
620.     ap_expr_yyset_extra(&ctx, ctx.scanner);
621.     rc = ap_expr_yyparse(&ctx);

server/util_expr_scan.c:2716:12: Call
  2714.     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
  2715. 
  2716.     return yy_init_globals ( *ptr_yy_globals );
                   ^
  2717. }
  2718. 

server/util_expr_scan.c:2764:5: Assignment
    2762.     yyg->yy_buffer_stack = NULL;
    2763.     yyg->yy_buffer_stack_top = 0;
    2764.     yyg->yy_buffer_stack_max = 0;
              ^
    2765.     yyg->yy_c_buf_p = NULL;
    2766.     yyg->yy_init = 0;

server/util_expr_eval.c:621:10: Call
619.     ap_expr_yylex_init(&ctx.scanner);
620.     ap_expr_yyset_extra(&ctx, ctx.scanner);
621.     rc = ap_expr_yyparse(&ctx);
              ^
622.     ap_expr_yylex_destroy(ctx.scanner);
623. 

server/util_expr_parse.c:1310:1: Parameter `ctx->scanner->yy_buffer_stack_max`
  1308. #if (defined __STDC__ || defined __C99__FUNC__ \
  1309.      || defined __cplusplus || defined _MSC_VER)
  1310. int
        ^
  1311. yyparse (ap_expr_parse_ctx_t *ctx)
  1312. #else

server/util_expr_parse.c:1505:16: Call
  1503.     {
  1504.       YYDPRINTF ((stderr, "Reading a token: "));
  1505.       yychar = YYLEX;
                       ^
  1506.     }
  1507. 

server/util_expr_scan.c:992:1: Parameter `yyscanner->yy_buffer_stack_max`
    990. /** The main scanner function which does all the work.
    991.  */
    992. YY_DECL
         ^
    993. {
    994. 	yy_state_type yy_current_state;

server/util_expr_scan.c:1019:4: Call
    1017. 
    1018. 		if ( ! YY_CURRENT_BUFFER ) {
    1019. 			ap_expr_yyensure_buffer_stack (yyscanner);
             ^
    1020. 			YY_CURRENT_BUFFER_LVALUE =
    1021. 				ap_expr_yy_create_buffer(yyin,YY_BUF_SIZE ,yyscanner);

server/util_expr_scan.c:2359:1: <LHS trace>
2357.  *  Guarantees space for at least one push.
2358.  */
2359. static void ap_expr_yyensure_buffer_stack (yyscan_t yyscanner)
      ^
2360. {
2361. 	int num_to_alloc;

server/util_expr_scan.c:2359:1: Parameter `yyscanner->yy_buffer_stack_max`
      2357.  *  Guarantees space for at least one push.
      2358.  */
      2359. static void ap_expr_yyensure_buffer_stack (yyscan_t yyscanner)
            ^
      2360. {
      2361. 	int num_to_alloc;

server/util_expr_scan.c:2384:6: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ap_expr_yyparse` 
      2382. 	}
      2383. 
      2384. 	if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
                 ^
      2385. 
      2386. 		/* Increase the buffer to prepare for a possible push. */
