server/util_expr_eval.c:421: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned64 by call to `ap_expr_yyparse`.

server/util_expr_eval.c:419:5: Call
417.     ctx.at_start    = 1;
418. 
419.     ap_expr_yylex_init(&ctx.scanner);
         ^
420.     ap_expr_yyset_extra(&ctx, ctx.scanner);
421.     rc = ap_expr_yyparse(&ctx);

server/util_expr_scan.c:2529:12: Call
  2527.     /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
  2528.     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
  2529. 
                   ^
  2530.     return yy_init_globals ( *ptr_yy_globals );
  2531. }

server/util_expr_scan.c:2577:5: Assignment
    2575. 
    2576.     yyg->yy_buffer_stack = 0;
    2577.     yyg->yy_buffer_stack_top = 0;
              ^
    2578.     yyg->yy_buffer_stack_max = 0;
    2579.     yyg->yy_c_buf_p = (char *) 0;

server/util_expr_eval.c:421:10: Call
419.     ap_expr_yylex_init(&ctx.scanner);
420.     ap_expr_yyset_extra(&ctx, ctx.scanner);
421.     rc = ap_expr_yyparse(&ctx);
              ^
422.     ap_expr_yylex_destroy(ctx.scanner);
423.     if (ctx.error) {

server/util_expr_parse.c:1235:1: Parameter `ctx->scanner->yy_buffer_stack_max`
  1233. #if (defined __STDC__ || defined __C99__FUNC__ \
  1234.      || defined __cplusplus || defined _MSC_VER)
  1235. int
        ^
  1236. yyparse (ap_expr_parse_ctx_t *ctx)
  1237. #else

server/util_expr_parse.c:1430:16: Call
  1428.     {
  1429.       YYDPRINTF ((stderr, "Reading a token: "));
  1430.       yychar = YYLEX;
                       ^
  1431.     }
  1432. 

server/util_expr_scan.c:867:1: Parameter `yyscanner->yy_buffer_stack_max`
    865. 
    866. /** The main scanner function which does all the work.
    867.  */
         ^
    868. YY_DECL
    869. {

server/util_expr_scan.c:922:4: Call
    920. 			yyout = stdout;
    921. 
    922. 		if ( ! YY_CURRENT_BUFFER ) {
            ^
    923. 			ap_expr_yyensure_buffer_stack (yyscanner);
    924. 			YY_CURRENT_BUFFER_LVALUE =

server/util_expr_scan.c:2174:1: <LHS trace>
2172. /* Allocates the stack if it does not exist.
2173.  *  Guarantees space for at least one push.
2174.  */
      ^
2175. static void ap_expr_yyensure_buffer_stack (yyscan_t yyscanner)
2176. {

server/util_expr_scan.c:2174:1: Parameter `yyscanner->yy_buffer_stack_max`
      2172. /* Allocates the stack if it does not exist.
      2173.  *  Guarantees space for at least one push.
      2174.  */
            ^
      2175. static void ap_expr_yyensure_buffer_stack (yyscan_t yyscanner)
      2176. {

server/util_expr_scan.c:2199:6: Binary operation: ([0, +oo] - 1):unsigned64 by call to `ap_expr_yyparse` 
      2197. 		return;
      2198. 	}
      2199. 
                 ^
      2200. 	if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
      2201. 
