Fix configure check for %z printf support after INT64_MODIFIER changes.

anarazel · anarazel · commit 7e3f728353fa · 2014-09-18T09:59:10.000+02:00
The PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT test was broken by ce48605. Among others it made the UINT64_FORMAT macro to be defined in c.h, instead of directly being defined by configure. This lead to the replacement printf being used on all platforms for a while. Which seems to work, because this was only used due to different profiles ;) Fix by relying on INT64_MODIFIER instead.
diff --git a/config/c-library.m4 b/config/c-library.m4
@@ -327,7 +327,8 @@ int main()
    */
   bufz[0] = '\0';  /* in case snprintf fails to emit anything */
   snprintf(bufz, sizeof(bufz), "%zu", ~((size_t) 0));
-  snprintf(buf64, sizeof(buf64), UINT64_FORMAT, (PG_INT64_TYPE) ~((size_t) 0));
+  snprintf(buf64, sizeof(buf64), "%" INT64_MODIFIER "u",
+    (unsigned PG_INT64_TYPE) ~((size_t) 0));
   if (strcmp(bufz, buf64) != 0)
     return 1;
   return 0;
diff --git a/configure b/configure
@@ -13201,7 +13201,8 @@ int main()
    */
   bufz[0] = '\0';  /* in case snprintf fails to emit anything */
   snprintf(bufz, sizeof(bufz), "%zu", ~((size_t) 0));
-  snprintf(buf64, sizeof(buf64), UINT64_FORMAT, (PG_INT64_TYPE) ~((size_t) 0));
+  snprintf(buf64, sizeof(buf64), "%" INT64_MODIFIER "u",
+    (unsigned PG_INT64_TYPE) ~((size_t) 0));
   if (strcmp(bufz, buf64) != 0)
     return 1;
   return 0;
