printf "%'d" missing in Pari/GP for printing 1000s commas

[hermann@stamm-wilbrandt.de]

In C

    setlocale(LC_NUMERIC, "");
    printf("%'d\n", 1123456789);

outputs:

    1,123,456,789


Pari/GP does not allow for that:

? printf("%'d",12345);
  ***   at top-level: printf("%'d",12345)
  ***                 ^-------------------
  *** printf: invalid conversion or specification ' in format `%'d'.
  ***   Break loop: type 'break' to go back to GP prompt
break>


For generating a markdown table with GP I used this simple function for 
up to 9-digit numbers:

f(d)={if(d>999999,print1(d\1000000,",");d%=1000000;printf("%03d,%03d|",d\1000,d%1000),if(d>999,print1(d\1000,",");printf("%03d|",d%1000),print1(d,"|")));}


Is there a more general solution?


Regards,

Hermann.