MDEV-3918: myisamchk bogus error for files larger than 4GB.

The failure is caused by failing stat() call . C Runtime function stat() uses old struct with 32bit st_size member,
and since Visual Studio 2010 , it returns an error on st_size overflow (i.e on files larger than 4GB)

Fix replaces stat() by my_stat(), the later is backed by 64bit-able stat64().

1 files changed, 3 insertions, 7 deletions

diff --git a/mysys/my_redel.c b/mysys/my_redel.c
index e06511542a3..b048c24d942 100644
--- a/mysys/my_redel.c
+++ b/mysys/my_redel.c
@@ -89,15 +89,11 @@ end:
 
 int my_copystat(const char *from, const char *to, int MyFlags)
 {
-  struct stat statbuf;
+  MY_STAT statbuf;
 
-  if (stat(from, &statbuf))
-  {
-    my_errno=errno;
-    if (MyFlags & (MY_FAE+MY_WME))
-      my_error(EE_STAT, MYF(ME_BELL+ME_WAITTANG),from,errno);
+  if (my_stat(from, &statbuf, MyFlags) == NULL)
     return -1;				/* Can't get stat on input file */
-  }
+
   if ((statbuf.st_mode & S_IFMT) != S_IFREG)
     return 1;