*** ../bash-20221015/subst.c	2022-10-18 10:47:33.000000000 -0500
--- subst.c	2022-10-20 11:41:07.000000000 -0500
***************
*** 3825,3828 ****
--- 3825,3832 ----
  #endif
  
+ /* We don't perform process substitution in arithmetic expressions, so don't
+    bother checking for it. */
+ #define ARITH_EXP_CHAR(s) (s == '$' || s == '`' || s == CTLESC || s == '~')
+ 
  /* If there are any characters in STRING that require full expansion,
     then call FUNC to expand STRING; otherwise just perform quote
***************
*** 4034,4038 ****
    while (string[i])
      {
!       if (EXP_CHAR (string[i]))
  	break;
        else if (string[i] == '\'' || string[i] == '\\' || string[i] == '"')
--- 4038,4042 ----
    while (string[i])
      {
!       if (ARITH_EXP_CHAR (string[i]))
  	break;
        else if (string[i] == '\'' || string[i] == '\\' || string[i] == '"')