From 6d8620941f70866a679491013890b747c269b01c Mon Sep 17 00:00:00 2001
From: David Allsopp <david.allsopp@metastack.com>
Date: Fri, 10 Apr 2020 21:38:28 +0100
Subject: [PATCH] Use PRIx64 on mingw-w64 instead llx

mingw-w64 is able to work with old enough Microsoft C runtimes which
don't support %llx. However, all versions of mingw-w64 do have
inttypes.h, so use it (PRIx64 is shimmed for other platforms, since
inttypes.h is a C99 header).
---
 src/genkat.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/genkat.c b/src/genkat.c
index 8db9036..1e75b0b 100644
--- a/src/genkat.c
+++ b/src/genkat.c
@@ -20,6 +20,12 @@
 #include <string.h>
 #include "argon2.h"
 #include "core.h"
+#ifdef __MINGW32__
+#include <inttypes.h>
+#else
+/* Don't use <inttypes.h> (it's not C89) */
+#define PRIx64 "llx"
+#endif
 
 void initial_kat(const uint8_t *blockhash, const argon2_context *context,
                  argon2_type type) {
@@ -115,7 +121,7 @@ void internal_kat(const argon2_instance_t *instance, uint32_t pass) {
                     : ARGON2_QWORDS_IN_BLOCK;
 
             for (j = 0; j < how_many_words; ++j)
-                printf("Block %.4u [%3u]: %016llx\n", i, j,
+                printf("Block %.4u [%3u]: %016" PRIx64 "\n", i, j,
                        (unsigned long long)instance->memory[i].v[j]);
         }
     }