[krbdev.mit.edu #8888] compile failure on red hat 6

[Norm Green via RT]

Tue Mar 24 01:45:07 2020: Request 8888 was acted upon.
 Transaction: Ticket created by norm.green at gemtalksystems.com
       Queue: krb5
     Subject: compile failure on red hat 6
       Owner: Nobody
  Requestors: norm.green at gemtalksystems.com
      Status: new
 Ticket <URL: https://krbdev.mit.edu/rt/Ticket/Display.html?id=8888 >


In this file:

src/plugins/preauth/spake/edwards25519_fiat.h

The following code fails to compile on RH 6.5 (gcc 4.4)

typedef signed __int128 fiat_25519_int128;
typedef unsigned __int128 fiat_25519_uint128;

Changing the typedefs as follows appears to work on both old and newer 
versions of gcc:


typedef  __int128_t fiat_25519_int128;
typedef  __uint128_t fiat_25519_uint128;

Norm Green
GemTalk Systems LLC